BenQ RM6502S User Manual Download Page 4

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Table of Contents

Product support................................................................... 3

Safety warnings and precautions...................................... 6

Important safety instructions............................................ 7

Notes on this display .....................................................................  7
Notes on the LCD panel of this display ....................................  7
Safety notice for remote control ................................................  8
Battery safety notice ......................................................................  8
BenQ ecoFACTS ............................................................................  9

Package contents ............................................................... 10

Setting up the display........................................................ 11

Mounting the display .................................................................... 11

Parts of the display and their functions........................ 13

Front/Rear panel ........................................................................... 13
Input/output terminals................................................................. 14
Remote control............................................................................. 16
Using the remote control ........................................................... 18

Connection ......................................................................... 20

Basic operations................................................................. 25

Summary of Contents for RM6502S

Page 1: ...RM6502S RM7502S RM8602S Interactive Flat Panel User Manual ...

Page 2: ...contents thereof without obligation to notify any person of such revision or changes Copyright Copyright 2020 BenQ Corporation All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise witho...

Page 3: ...ual and related document www BenQ com Business SUPPORT Downloads model name User Manual EU only Dismantled information Available on the user manual download page This document is provided based on Regulation EU 2019 2021 to repair or recycle your product Always contact the local customer service for servicing within the warranty period If you wish to repair an out of warranty product you are recom...

Page 4: ...f the display and their functions 13 Front Rear panel 13 Input output terminals 14 Remote control 16 Using the remote control 18 Connection 20 Connecting the VGA input 20 Connecting the touch module 20 Connecting the digital inputs 21 Connecting the video output 22 Connecting to serial port 23 Connecting power 24 Basic operations 25 Turning the display on or off 25 Initial setup 26 OSD Setting 26 ...

Page 5: ...terface 51 Main interface 51 APPS 60 BenQ Suggests 60 InstaShare 61 InstaQPrint 62 WPS Office 63 Email 65 Side Tool Bar 66 Blizz 67 Product information 68 Specifications 68 Dimensions RM6502S 70 Dimensions RM7502S 71 Dimensions RM8602S 72 Supported input signal resolution 73 Troubleshooting 75 Accessibility Requirements for Rehabilitation Act of 1973 Section 508 78 2 1 21 ...

Page 6: ...y Using wrong or unsuitable accessories may cause the display to fall and result in serious personal injuries Make sure that the surface and fixing points are strong enough to sustain the weight of the display To reduce the risk of electric shock do not remove covers No user serviceable parts inside Refer servicing to qualified service personnel To prevent personal injuries mounting the display or...

Page 7: ...nufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged ...

Page 8: ... the operation of the display This condensation will usually disappear after around 2 hours of normal operation RM series does not offer image retention function for more information please refer to installation guide If a still image is required for a display it is recommended to enable Pixel shift RM series does not support portrait use portrait use may cause display damage BenQ warranty will no...

Page 9: ...Bringing Enjoyment N Quality to Life corporate vision with the ultimate goal to achieve a low carbon society Besides meeting international regulatory requirement and standards pertaining to environmental management BenQ has spared no efforts in pushing our initiatives further to incorporate life cycle design in the aspects of material selection manufacturing packaging transportation using and disp...

Page 10: ...emote control HDMI cable x 1 Wall mount Touch pen x 2 The type of power cord supplied may differ from that illustrated depending on your region of purchase Before discarding the package check that you haven t left any accessories inside the box Dispose of packaging materials wisely You can recycle the cardboard carton Consider storing the package if possible for future transport of the display Do ...

Page 11: ...nstallation to qualified technicians Improper installation may cause the display to fall or malfunction Installing the display on a wall 1 Place a clean dry and lint free cloth on a flat horizontal and object free surface Make sure that the size of the cloth is larger than the display 2 Gently lay the display on the cloth with the LCD screen facing down 3 Remove the desktop stands from the display...

Page 12: ...tightened and secured properly Recommended torque 470 635N cm The mounting means should be strong enough to bear the weight of the display To maintain proper ventilation keep at least 10 mm of clear space from the back cover of the display to the wall Please consult a professional technician for wall mount installations The manufacturer accepts no liability for installations not performed by a pro...

Page 13: ...ceives HDMI signals from an external device TOUCH External computer touch signal input When connecting external computer besides connecting external computer VGA and audio signals external computer s USB port needs to be connected to the corresponding group Under the condition that driver is installed external computer can be touch controlled through the equipment touch function is effective in VG...

Page 14: ...es on USB drives directly USB 3 0 Accesses multimedia files on USB drives directly 5V 1 5A USB 3 0 Accesses multimedia files on USB drives directly TOUCH 1 External computer touch signal input When connecting external computer besides connecting external computer VGA and audio signals external computer s USB port needs to be connected to the corresponding group Under the condition that driver is i...

Page 15: ...nsfer of data between devices SPDIF Connects the SPDIF cable from external devices to the display for audio in AUDIO IN MIC IN AUDIO IN Receives audio signals from an external device MIC IN Connects to a microphone VGA Receives analog RGB signals from an external device such as a computer USB 2 0 Unscrew the cover to access the USB slot for Wi Fi dongle OPS Open pluggable specification Intel OPS s...

Page 16: ...in computer program window close button Numeric buttons Perform as numeric buttons Display Show the current input source and information TV channel return key INPUT Select the input source Return key HOME Android system main screen button MENU Open or close the OSD menu Red button Lock the keyboard and touch function Green button Lock keypad Yellow button Lock touch Blue button Freeze screen 1 2 3...

Page 17: ...es Quickly start writing application EZWrite Select writing pen quickly if the application is started Back Return key PgUp Built in computer page previous page PgDn Built in computer page next page CH CH Channel switch key VOL VOL Volume switch key F1 F12 Built in computer F1 F12 function keys Build in computer is not available All buttons related to computer are regarded as disabled in case of no...

Page 18: ...rect sunlight or strong light the remote control may not operate properly In this situation change the light source readjust the angle of the display or operate the remote control from a location closer to display s remote control sensor window 1 Open the remote control battery compart ment cover 2 Insert the supplied batteries ensuring that the positive and negative marked battery terminals match...

Page 19: ...Parts of the display and their functions 19 ...

Page 20: ...orts easy Plug and Play operation There is no need to install additional drivers on the computer Avoid blocking the touch screen frame where sensors are located when initiating the touch module It is highly recommended that you connect the display to the PC or laptop directly Avoid connecting the display to a face plate device which may cause failures in touch operations If any ghost image occurs ...

Page 21: ...n the display using an HDMI cable 2 To view images from this input press on the remote control to switch to the respective input source The applicable cable is not supplied and should be purchased separately The display provides a selection for the dual monitor mode TOUCH 1 port must be connected with HDMI IN 1 or HDMI IN 2 HDMI cable DVD player Computer ...

Page 22: ...g the video output For computer 1 Use HDMI cable to connect from HDMI OUT to the respective jacks of the devices 2 Plug in power cord and switch power on 3 Press on the remote control to turn on the display HDMI OUT Projector ...

Page 23: ...plied and should be purchased separately This connection is applicable to straight through RS 232C cable only After using serial port line to connect central control equipment and machine certain function of the machine can be controlled via central control equipment such as machine on off and adjustment of sound volume etc RS 232C cable Computer ...

Page 24: ...nes used in your region Only use an appropriate power cord for your region Never use a power cord which appears damaged or frayed or change the plug type on the power cord Be aware of the power loading when you use extension cords or multiple outlet power boards There are no user serviceable parts in this display Never unscrew or remove any covers There are dangerous voltages inside the display Tu...

Page 25: ...s the Power button on the control panel or on the remote control The system will automatically enter standby mode To turn on the display press the ON OFF button on the control panel or on the remote control To turn off the display press the ON OFF button on the control panel or on the remote control The system will automatically enter standby mode AC IN Power Switch Power Button IR Receiver The di...

Page 26: ... display Wait for the display to boot up with the BenQ screen This may take a moment 2 Tap Next on the screen to begin Follow the on screen instructions to set up the language date and time and network Or your can skip some of these steps and complete the setup later OSD Setting Under Connection you can select a desired input source and adjust backlight Refer to Input settings on page 39 for more ...

Page 27: ... brightness Admin Log in as Admin Under Personal settings you can change the headshot wallpaper and password You can also enable AMS service set Available offline accounts and check Device information Multiple users To access your personal account you have to ask the administrator to activate AMS service first and create your account through IAM service Refer to User Management on page 28 for more...

Page 28: ... to create your account through BENQ IAM web service Creating a new account 1 As an administrator to create a new account for regular users go to BenQ Service website https ams benq com Suggested browsers are Chrome Firefox 2 Log in and choose IAM 3 Click Create New Account to continue ...

Page 29: ...dress and activate the X Sign and Broadcast service Click Submit to create a new account 5 The account has been created and a verifying email is sent to the new account owner You can esaily switch to different services X Sign DMS AMS Broadcast by clicking the icon on the upper right corner ...

Page 30: ...r display To check if there is a software update available for your device or to obtain the software license key please visit https www benq com en us business support products ifp partner software download html Then enter the serial number can be found on the sticker attached on the back of the display and click OK to access the Software download page Setting up the Internet connection Your displ...

Page 31: ...ss shown please connect the display to the ethernet cable Wireless connection You must use a wireless adapter in order to connect the display to the Internet wirelessly Please contact your local dealer for more information on configuring the wireless connection 1 Press on the remote control or go to Network Wi Fi ...

Page 32: ... software is available the system will automatically detect the update and will prompt you to download it every time you turn on the display If you want to update the software choose NETWORK UPDATE or USB UPDATE to continue the update Or your can skip this step and update the software later To manually update the software If you are connecting to a secured wireless network enter the password for t...

Page 33: ...s on the remote control to adjust the volume Press on the front panel of the display Go to Setting General to adjust the volume Refer to General settings on page 40 for more information Software update process may take some time to complete During the update process do not turn off the device or disconnect the Internet connection Any interruptions during the software update process may permanently...

Page 34: ...list of gestures you can use on the touch screen Ensure that you have installed the USB cable on the display to a computer Windows is a registered trademark of Microsoft Corporation in the United States and other countries OS functions Gesture actions For Windows XP Windows 7 Windows 8 and Windows 10 Click Tap the screen once Double click Tap the screen twice Right click 1 Press on the target 2 Ho...

Page 35: ...er Flick in a desired direction Multi touch functions For Windows 7 Home Premium Professional Enterprise and Ultimate versions Right click 1 Press on the target 2 Tap the screen with another finger 3 Release the second finger Scrolling Drag one or two fingers up or down Zoom Move two fingers apart or toward each other OS functions Gesture actions or ...

Page 36: ...e S3 Press and hold for 4 seconds OS functions Gesture actions Gesture Description For Windows 8 Press and hold to learn This touch interaction causes detailed information or teaching visuals for example a tooltip or context menu to be displayed without a commitment to an action Anything displayed this way should not prevent users from panning if they begin sliding their finger Tap for primary act...

Page 37: ...o the panning direction selects objects in a list or grid ListView and GridLayout controls Display the AppBar with relevant commands when objects are selected Pinch and stretch to zoom While the pinch and stretch gestures are commonly used for resizing they also enable jumping to the beginning end or anywhere within content with Semantic Zoom A SemanticZoom control provides a zoomed out view for s...

Page 38: ...ll amount of alcohol to clean the infrared plastic filter To avoid damage to the screen never use any type of abrasive materials to wipe the screen Use a neutral detergent to clean the touch screen Avoid using detergents with erosive substance such as banana oil or ammonia Moisten a clean soft lint free cloth with a neutral detergent and then clean the touch screen Do not spray a detergent on the ...

Page 39: ...OSD menu Settings menu Input settings Press on the remote control Menu on the front panel or drag from the bottom middle to the center of the screen to enter the OSD menu Press on the remote control and press OK to confirm or directly click a desired input source Press on the remote control or click a blank area outside the menu to exit the menu ...

Page 40: ...wipe to enable or disable Mute Go to More to enter Audio menu Picture Under Picture use the brightness bar to adjust the brightness for the display You can enable the Eye Care function on the OSD menu Eye Care switches the display s low blue light mode and activates the flicker free function Directly swipe to enable or disable Auto Backlight Go to More to enter Picture menu ...

Page 41: ... solution Enable the Eye Care function under General Go to Device Display Eye care option Suggestions for long term use of the display Rest your eyes for 10 minutes after 30 minutes of continuous use For every 20 minutes of display viewing look into the distance for 20 seconds When your eyes get sore and strained close your eyes for a minute and then roll your eyes in all directions Menu Descripti...

Page 42: ...click an item Press on the remote control or click a blank area outside the menu to exit the menu Menu Description Balance Drag the knob to adjust the balance Sound Mode Touch a preset sound environment Options are Standard Movie Custom Meeting or Class mode Under mode you can adust Treble and Bass ...

Page 43: ... mode Options are Eco Standard Bright Soft Custom 1 Custom 2 and Custom 3 Brightness Users could only adjust Brightness under external source Contrast Users could only adjust Contrast under external source Hue Users could only adjust Hue under external source Sharpness Users could only adjust Sharpness under external source Saturation Users could only adjust Saturation under external source Color ...

Page 44: ...item Press on the remote control or click a blank area outside the menu to exit the menu Press on the remote control and press OK to adjust image The display automatically enters energy saving mode when no one is detected within the sensor s range Menu Description Aspect ratio Press on the remote control or click an aspect ratio Options are 16 9 PTP or Auto ...

Page 45: ... H Position V Position Clock and Phase functions to manually adjust the image More settings Advanced settings Go to Device Advanced settings Press on the remote control and press OK to confirm or directly click an item Menu Description H Position Press to move the screen to the left or right V Position Press to move the screen up or down ...

Page 46: ... remote control IR sensor on the front panel of the display Touch lock Press OK on the remote control or click the switch to lock or unlock the screen If keypad IR and touch are locked all at once please follow the steps to unlock Press on the remote control for five seconds For image retention please see Notes on the LCD panel of this display on page 7 for more information Options Description Dat...

Page 47: ...Auto Config Floating tool Click to open and close the floating tool Refer to AMS file manager overview on page 53 for more information About Click to view system information in Android The amount of available storage space for the user varies according to the amount of pre installed apps and images occupying the total storage space ...

Page 48: ...Menu operations 48 Enter the proxy host name Enter the using channel Startup Shutdown Go to System Startup Shutdown ...

Page 49: ...Menu operations 49 For Startup channel you can choose Last shutdown channel or other sources ...

Page 50: ...Menu operations 50 For Close power off reminder you can set on or off time Schedules can be made by choosing the days of the week ...

Page 51: ... this is a closed Android OS Download and use of unauthorized apps on this system are not available Item Description 1 Source Selection You can open files from the cloud storage services like Google Drive Dropbox or Samba You can also open files from the local devices like Internal My Folder or connected USBs The icon next to Google Drive Dropbox shows that the account is bound to AMS service 2 Fo...

Page 52: ...g Annotation Toolbar around You can also click the button to close the floating toolbar and clear all the brushes Annotate Click to switch the color of the brush Color options are blue red green and black Palm eraser is provided for you to erase any contents on the display just with your palm while you are writing without switching to Eraser Whiteboard Click to start EZWrite 5 0 Clear All Click to...

Page 53: ...o launch AMS With this application you can access your personalized workspace environment and settings and manage your files and accounts on any IFP that you have logged into While logging in you will see four main parts as described in the table below 1 2 3 4 ...

Page 54: ...also open files from the local devices like Internal My Folder or connected USBs The icon next to Google Drive Dropbox shows that the account is bound to AMS service 2 Folder Path You can browse the file folder in this area 3 Listing Files You can see a list of files from the storage device you select 4 Operating Tab You can edit the files using the operating tabs here Regular users can only view ...

Page 55: ...urrent image clockwise Go to the settings See the information about the file name creation time file size and the file format File Image Supported range bmp BMP Max Resolution 8000 8000 Min Resolution 4 x 4 gif GIF Max Resolution 8000 8000 Min Resolution 4 x 4 jpeg jpg JPEG JPG Max Resolution 8000 8000 Min Resolution 4 x 4 png PNG Max Resolution 8000 8000 Min Resolution 4 x 4 ...

Page 56: ...list Play the previous audio file Play pause the current audio file Play the next audio file Check the audio information File Format Audio Codec Supported range aac AAC AAC Sample Rate 8K 96KHz Bit Rate 24K 576Kbps ape Monkey s Audio Monkey s Audio Sample Rate Max 48KHz Bit Rate max 1411Kbps flac FLAC FLAC Sample Rate Max 192KHz Bit Rate max 1411Kbps m4a ALAC ALAC Sample Rate 8K 96KHz Bit Rate 24K...

Page 57: ...udio Layer3 MPEG1 2 layer3 Sample Rate 8K 48KHz Bit Rate 32K 320Kbps ogg Vorbis Vorbis Sample Rate 8K 48KHz Bit Rate max 256Kbps wav WAV LPCM Sample Rate 8K 192KHz Bit Rate max 320Kbps Icon Function Adjust the video volume Play the previous video file Play pause the current video file Play the next audio file File Format Audio Codec Supported range ...

Page 58: ...MPEG 2 1920 1088 30 Fps 80Mbps MPEG 4 1920 1088 30 Fps 50Mbps MJPEG 1920 1080 30 Fps 150Mbps flv H 263 MPEG1 2 Layer3 AAC 1920 1088 30 Fps 5Mbps VP6 1920 1088 30 Fps 40Mbps H 264 3840 2160 30 Fps 160Mbps f4v H 264 AAC 3840 2160 30 Fps 160Mbps mkv H 264 AAC MPEG1 2 Layer3 3840 2160 30 Fps 160Mbps H 265 3840 2160 60 Fps 160Mbps Vc 1 1920 1088 30 Fps 45Mbps mov H 264 AAC PCM 3840 2160 30 Fps 160Mbps ...

Page 59: ... 30 Fps 160Mbps MPEG 1 1920 1088 30 Fps 80Mbps MPEG 2 1920 1088 30 Fps 80Mbps ts H 264 AACAAC MPEG1 2 Layer3 3840 2160 30 Fps 160Mbps H 265 3840 2160 60 Fps 160Mbps MPEG 2 1920 1088 30 Fps 80Mbps MPEG 4 1920 1088 30 Fps 50Mbps VC 1 AP 1920 1088 30 Fps 45Mbps File Codec Extensions Video Audio Maximum transmit ratio ...

Page 60: ...ion you can view apps suggested by BenQ for download Tap the category on the left panel to browse the suggested apps Tap an app from the selected category to view a basic description of the app Function Description Search Tap to search for an app Education Tap to show the suggested apps in the Education category ...

Page 61: ...taShare ID name that you want to connect to or enter the pairing code 4 Enter the connect code shown on the upper right corner of the display or you can also find the connection code in Setting 5 Once the mobile device has successfully connected to the display a confirmation message will appear on the display Tap Allow on the display to confirm the connection 6 Once connected you can Mirror the di...

Page 62: ...With this application you can print a file or website image using a Wi Fi or remote printer 1 Tap the option on the left panel and browse and select the desired file photo page or image you want to print Once connected any operations on the display or mobile device will also show up on your mobile device and display Before launching the application make sure your display is properly connected to l...

Page 63: ...search for printers automatically Tap Manual Setup to add a new printer manually WPS Office Tap to launch WPS Office With this application you can open document files including PDFs as well as Microsoft Word PowerPoint and Excel documents To edit a file with WPS Office 1 Tap Open on the left panel to browse and open a file located in either the dis play s internal memory an external storage device...

Page 64: ...o edit the content or format of the slides Insert Tap to insert tables pictures charts comments video or audio Transitions Tap to apply or adjust the timing of a transition Pen Tap to write draw paint or sketch to the slides Play Tap to start a slide show Save As Tap to save the presentation file on either the display s internal memory an external storage device or cloud storage Undo Tap to undo a...

Page 65: ...To use Email set up an account first Type your Email address and click NEXT After you ve signed up you will receive a verification email After you respond to the Email verification you can begin writing email Office Software Supported File Formats Word wps wpt doc docx dot dotx txt log irc c cpp h asm s java asp bat bas prg cmd Excel et ett xls xlsx xlt xltx csv xlsm xltm PowerPoint ppt pptx ...

Page 66: ...turn Tap to return to previous operation interface SwitchQ Tap to switch tasks between recent apps and input sources EZWrite 5 0 Tap to enter EZWrite 5 0 software Connection Tap to enter Connection to select the input source Floating Annotation Toolbar Click to open the floating tool ...

Page 67: ... Blizz users 1 On the home screen select Apps Blizz 2 Select Sign In if you want to create a new meeting select Join a Meeting if you want to join an already created meeting After signing in create a meeting ID which will be the meeting ID other users will enter to join the meeting If joining a meeting enter the meeting ID provided by the creator of the meeting in the Join a Meeting page ...

Page 68: ... IR Touch Touch Method Finger Stylus Resolution 32767 x 32767 Numbers of Touch 20 points varies from operating systems and applications Touch Output x 3 Rear x 2 Front x 1 USB type B Operating System Touch Driver Free Win 7 Win 8 8 1 Win 10 Mac OS X10 11 10 14 Chrome OS 58 Ubuntu 16 04 Fedora 28 OpenSuse 15 Android kernel version 3 10 or above touch function varies from releases Panel glass Temper...

Page 69: ...5kg Without With Packing Dimensions W x H x D mm RM6502S 1488 1 938 4 116 6 RM7502S 1709 1 1061 7 116 6 RM8602S 1957 1 115 8 1201 8 Specifications and functions are subject to change without notice Item RM6502S RM7502S RM8602S System CPU Dual core A73 Dual core A53 1 5GHz System Memory 3GB Storage 32GB OS Android 8 0 This Android 8 0 operating system is not standard Android so access to Google Pla...

Page 70: ...Product information 70 Dimensions RM6502S Unit mm 287 1 7 9 5 7 9 5 287 1 23 1 1 23 1 1 02817 6 5 7 5 37 0 ...

Page 71: ...Product information 71 Dimensions RM7502S Unit mm 287 1 23 1 1 7 9 5 7 9 5 23 1 1 287 1 02817 6 5 7 5 37 0 ...

Page 72: ...Product information 72 Dimensions RM8602S Unit mm 287 1 287 1 23 1 1 7 9 5 7 9 5 23 1 1 02817 6 5 7 5 37 0 ...

Page 73: ... 1152 x 864 60Hz 1280 x 720 50Hz 1280 x 768 60Hz 1280 x 800 60Hz 1280 x 960 60Hz 1280 x 1024 60Hz 1360 x 768 60Hz 1366 x 768 60Hz 1400 x 1050 60Hz 1440 x 900 60Hz 1600 x 900 60Hz 1680 x 1050 60Hz 1920 x 1080 30Hz 1920 x 1080 50Hz 1920 x 1080 60Hz 3840 x 2160 30Hz 3840 x 2160 50Hz 3840 x 2160 60Hz NTSC M NTSC J PAL BDGHI 480i 60Hz 480p 60Hz 576i 50Hz 576p 50Hz 720p 25Hz 720p 30Hz ...

Page 74: ...Product information 74 720p 50Hz 720p 60Hz 1080i 50Hz 1080i 60Hz 1080p 50Hz 1080p 60Hz supported Vacant not supported Display Port HDMI timing table should follow EDID1 4 or EDID2 0 ...

Page 75: ...on and try again No sound Check the following Have you turned on the mute function on the display or the input source device Turn off the mute function or increase the audio volume level and try again Are there any loose cable connections Make sure that all cables are connected firmly The computer input image looks strange Have you chosen an unsupported output resolution on the computer Refer to S...

Page 76: ...ng to failure of remote control Check whether the battery electrode in the remote control is correct Check whether remote control needs to replace battery Machine automatically shutdown Whether set sleep or not Check whether there is sudden power outage Check whether there is no signal automatic shutdown Signal out of range Check whether display is set correctly Check whether resolution is the bes...

Page 77: ...ools are placed around the machine No color color is weak or image is weak Adjust chromaticity and brightness or contrast in menu Check whether signal wire is well connected With image but without sound Check whether mute button is pressed for mute Press VOL VOL to adjust volume Check whether audio line is connected correctly Only one speaker has sound Adjust sound balance in menu Check whether co...

Page 78: ...ailable by using the On Screen Display OSD controls on the products BenQ s displays include user selectable color controls such as color temperature selections IFP 5500K 9300K 12000K DS 6500K 9300K 12000K with a wide range of contrast levels BenQ s multimedia displays usually have one or two speakers for audio performance which allow users including hearing impaired to interact with the computer s...

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