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English

Turning the Projector On/Off 

Turning On the Projector

1

Ensure that the power cord and signal cable are securely connected. 
The Power LED will light red.

2

Turn on the projector by pressing 

 (POWER) on the control panel or 

remote control, and the Power indicator LED will turn blue.

3

Turn on your source (computer, notebook, video player, etc.). The 
projector will detect your source automatically (when it is the first 
time you turn on the projector or the Source Selection function is 
"Auto"). 

If the screen displays "No Signal", please make sure the signal cables 
are securely connected.

If you connect to multiple sources at the same time, use "SOURCE" on 
the control panel or remote control, or the direct source key on the 
remote control to switch between inputs.

Summary of Contents for P1150

Page 1: ...Series User s Guide P1150 P1250 P1350W P1350WL AS329 ASV1712 AX329 ANX1711 AW329S AWX1710 AW329 AWX1709 M306 M316 M326S M326 F25S F25X F25WS F25W Acer Projector PE S45 PE X45 PE W45S PE W45 ...

Page 2: ...s or warranties either expressed or implied with respect to the contents hereof and specifically disclaims the implied warranties of merchantability or fitness for a particular purpose Record the model number serial number purchase date and place of purchase information in the space provided below The serial number and model number are recorded on the label affixed to your projector All correspond...

Page 3: ...wer outlet you plug the power cord into is easily accessible and located as close to the equipment operator as possible When you need to disconnect power to the equipment be sure to unplug the power cord from the electrical outlet Warnings Do not use this product near water Do not place this product on an unstable cart stand or table If the product falls it could be seriously damaged Slots and ope...

Page 4: ... outlet strip or receptacle by plugging in too many devices The overall system load must not exceed 80 of the branch circuit rating If power strips are used the load should not exceed 80 of the power strip s input rating This product s AC adapter is equipped with a three wire grounded plug The plug only fits in a grounded power outlet Make sure the power outlet is properly grounded before insertin...

Page 5: ...e work by a qualified technician to restore the product to normal condition Warning For safety reasons do not use non compliant parts when adding or changing components Consult your reseller for purchase options Your device and its enhancements may contain small parts Keep them out of the reach of small children Additional safety information Do not look into the projector s lens when the lamp is o...

Page 6: ...t or dust Do not look into the air outlet grille when projector is operating It may hurt your eyes Always open the lens shutter or remove the lens cap when the projector is on Do not block the projector lens with any object when the projector is under operation as this could cause the object to become heated and deformed or even cause a fire To temporarily turn off the lamp press HIDE on the remot...

Page 7: ...sh when discarding To minimize pollution and ensure utmost protection of the global environment please recycle For more information on the Waste from Electrical and Electronics Equipment WEEE regulations visit http www acer group com public Sustainability index htm Mercury advisory For projectors or electronic products containing an LCD CRT monitor or display Lamp s inside this product contain mer...

Page 8: ...r unit Warning Do not look into the projector s lens when the lamp is on The bright light may hurt your eyes To reduce the risk of fire or electric shock do not expose this product to rain or moisture Please do not open or disassemble the product as this may cause electric shock The product will detect the life of the lamp itself Please contact your local dealer or Acer service center for changing...

Page 9: ...ing Started 8 Connecting the Projector 8 Turning the Projector On Off 10 Turning On the Projector 10 Turning Off the Projector 11 Adjusting the Projected Image 12 Adjusting the Height of the Projected Image 12 How to Optimize Image Size and Distance 13 How to Get a Preferred Image Size by Adjusting Distance and Zoom 16 User Controls 19 Installation Menu 19 Onscreen Display OSD Menus 20 Color 21 Im...

Page 10: ...Appendices 33 Troubleshooting 33 LED Alarm Definition Listing 37 Ceiling Mount Installation 38 Specifications 41 Compatibility Modes 44 Regulations and safety notices 48 ...

Page 11: ...er power consumption and economy ECO mode extends lamp life Dynamic Black ExtremeEco functions help decrease lamp power consumption and further extend lamp life Dynamic Black If turned on the projector dynamically adjusts the power consumption of the lamp according to the brightness of the image being projected When projecting darker images the power consumption will be reduced and the contrast of...

Page 12: ...tact your dealer immediately if any thing is missing Note The package content may differ by regions Projector Power cord VGA cable Optional HDMI cable Optional Security card Optional User s guide CD ROM Optional Remote control Quick start guide AAA Battery x 2 Carrying case Optional WirelessHD dongle kit MWIHD1 Optional ...

Page 13: ...eceiver Description Description 1 Audio input connector Audio output connector 7 Mini USB connector 2 HDMI connector 8 Composite video input connector 3 HDMI MHL connector 9 DC 5V output 4 Analog RGB signal HDTV component video input connector 10 Kensington lock port 5 Monitor loop through output connector from VGA IN 1 only 11 Power socket 6 RS232 connector 12 Tilt adjusting wheel 1 2 4 5 3 6 1 2...

Page 14: ...or On Off section 5 ENTER Confirms your selection of items 6 BACK Cancels your selection or goes back to previous page 7 TEMP Temperature indicator LED 8 SOURCE Changes the active source 9 Four directional selection keys Selects items or makes adjustments to your selection 10 MENU Launches the Onscreen Display OSD menu returns to the previous step for the OSD menu operation or exits the OSD menu 1...

Page 15: ...ents to your selection ENTER Confirms your selection of items Play Pause 5 BACK Cancels your selection or goes back to previous page Stop 6 FREEZE To pause the screen image 7 VGA To change source to VGA This connection supports analog RGB and YPbPr 480i 480p 576i 576p 720p 1080i 1080p 8 PgUp PgDn For computer mode only Use this button to select the next or previous page This function is only avail...

Page 16: ...xits the OSD menu 16 HIDE Press HIDE to hide screen image press again to display the image 17 HDMI MHL To change source to HDMI or MHL for the model with HDMI or MHL connector 18 ZOOM IN ZOOM OUT Zooms the projector display in or out 19 VIDEO To change source to composite video 20 LAN WiFi No function 21 Keypad 0 9 Press 0 9 to input a password in the Setting Security OSD 22 MUTE Mutes or unmutes ...

Page 17: ...l mode 13 SOURCE After entering the MHL control mode press to switch between the navigation mode default media mode and numeric mode 4 Four directional select keys Up Up No function No function down down No function No function Left Left No function No function Right Right No function No function 21 Keypad 0 9 No function No function Enters 0 9 15 MENU Goes to the root menu No function No function...

Page 18: ...7 3 RCA component cable 2 Audio cable 8 Composite video cable 3 HDMI MHL cable 9 RS232 cable 4 VGA to component video HDTV adapter 10 WirelessHD dongle 5 VGA cable 11 Wireless dongle 6 USB cable HDTV adapter RCA R L 11 1 4 3 3 3 5 5 6 9 7 8 2 2 10 2 DVD player Set top box HDTV receiver VGA HDMI RS232 Video Output Display Speakers Smartphone tablet ...

Page 19: ...f the display mode is compatible with the projector Note Some smart devices require a converter supplied by the smart device maker to enable the MHL function Note Compatible HDMI MHL dongles WirelessHD MWIHD1 MWA3 Android MWND1 ChromecastTM ...

Page 20: ... turn blue 3 Turn on your source computer notebook video player etc The projector will detect your source automatically when it is the first time you turn on the projector or the Source Selection function is Auto If the screen displays No Signal please make sure the signal cables are securely connected If you connect to multiple sources at the same time use SOURCE on the control panel or remote co...

Page 21: ...process 3 Once the system has finished cooling the LED Power indicator will stop blinking and turn solid red to indicate standby mode 4 It is now safe to unplug the power cord Warning indicators Projector Overheated Lamp will automatically turn off soon This onscreen message indicates that the projector has overheated The lamp will automatically turn off the projector will automatically shut down ...

Page 22: ...e image 1 Use the front Tilt adjusting wheel to raise the image to the desired height and angle 2 Use the rear Tilt adjusting wheel to fine tune the display angle To lower the image 1 Use the front Tilt adjusting wheel to lower the image to the desired height and angle 2 Use the rear Tilt adjusting wheel to fine tune the display angle Tilt adjusting wheel Tilt adjusting wheel ...

Page 23: ...p of image cm C Diagonal inch B W cm x H cm From base to top of image cm C 1 23 47 x 35 38 25 51 x 38 42 1 5 34 70 x 52 58 38 77 x 57 63 2 46 93 x 70 77 50 102 x 77 84 2 5 57 116 x 87 96 63 128 x 96 105 3 69 140 x 105 115 75 153 x 115 126 3 5 80 163 x 122 134 88 179 x 134 147 4 92 186 x 140 153 100 204 x 153 168 4 5 103 209 x 157 173 113 230 x 172 189 5 114 233 x 174 192 126 255 x 191 210 6 137 27...

Page 24: ...5 44 96 x 60 66 58 124 x 77 85 2 59 127 x 80 88 77 165 x 103 114 2 5 74 159 x 100 109 96 207 x 129 142 3 89 191 x 119 131 115 248 x 155 170 3 5 103 223 x 139 153 134 289 x 181 199 4 118 255 x 159 175 153 331 x 207 227 4 5 133 287 x 179 197 173 372 x 232 256 5 148 318 x 199 219 192 413 x 258 284 6 177 382 x 239 263 230 496 x 310 341 7 207 446 x 279 307 269 579 x 362 398 8 237 510 x 318 350 307 661 ...

Page 25: ...1 5 41 88 x 55 55 45 97 x 60 60 2 55 118 x 74 74 60 129 x 81 81 2 5 68 147 x 92 92 75 161 x 101 101 3 82 176 x 110 110 90 194 x 121 121 3 5 96 206 x 129 129 105 226 x 141 141 4 109 235 x 147 147 120 258 x 161 161 4 5 123 265 x 165 165 135 290 x 181 181 5 137 294 x 184 184 150 323 x 202 202 6 164 353 x 221 221 180 387 x 242 242 7 191 412 x 257 257 210 452 x 282 282 8 218 471 x 294 294 240 516 x 323...

Page 26: ...ordingly Desired Image Size Distance m Top cm Diagonal inch A W cm x H cm Max zoom B Min zoom C From base to top of image D 30 61 x 46 1 3 50 40 81 x 61 1 6 1 7 67 50 102 x 76 2 0 2 2 84 60 122 x 91 2 4 2 6 101 70 142 x 107 2 8 3 1 117 80 163 x 122 3 2 3 5 134 90 183 x 137 3 6 3 9 151 100 203 x 152 4 0 4 4 168 120 244 x 183 4 8 5 2 201 150 305 x 229 6 0 6 6 251 180 366 x 274 7 2 7 9 302 200 406 x ...

Page 27: ...From base to top of image D 30 65 x 40 1 0 44 40 86 x 54 1 0 1 4 59 50 108 x 67 1 3 1 7 74 60 129 x 81 1 6 2 0 89 70 151 x 94 1 8 2 4 104 80 172 x 108 2 1 2 7 118 90 194 x 121 2 3 3 0 133 100 215 x 135 2 6 3 4 148 120 258 x 162 3 1 4 1 178 150 323 x 202 3 9 5 1 222 180 388 x 242 4 7 6 1 267 200 431 x 269 5 2 6 8 296 250 538 x 337 6 5 8 5 370 300 646 x 404 7 8 444 Zoom Ratio 1 3 x Desired distance ...

Page 28: ...rom base to top of image D 30 65 x 40 1 1 40 40 86 x 54 1 3 1 5 54 50 108 x 67 1 7 1 8 67 60 129 x 81 2 0 2 2 81 70 151 x 94 2 3 2 6 94 80 172 x 108 2 7 2 9 108 90 194 x 121 3 0 3 3 121 100 215 x 135 3 3 3 7 135 120 258 x 162 4 0 4 4 162 150 323 x 202 5 0 5 5 202 180 388 x 242 6 0 6 6 242 200 431 x 269 6 7 7 3 269 250 538 x 337 8 3 9 2 337 300 646 x 404 10 0 404 Zoom Ratio 1 1 x Desired distance H...

Page 29: ... installation and maintenance 3 The background pattern acts as a guide to adjusting the calibration and alignment settings such as screen size and distance focus and more Note The OSD screenshot is for reference only and may differ from the actual design 4 The Installation menu includes several options Use the up and down arrow keys to select an option the left and right arrow keys to adjust selec...

Page 30: ...em press to enter a submenu for feature setting Use to select the desired item and adjust the settings by using Select the next item to be adjusted in the submenu and adjust as described above Press MENU on the control panel or remote control the screen will return to the main menu To exit the OSD menu press MENU on the control panel or remote control again It will close and the projector will aut...

Page 31: ... Dynamic Black automatically optimizes the display of dark movie scenes enabling them to be shown in incredible detail When this function is enabled BluelightShield will be automatically set to Off LumiSense function is unavailable when 3D is set to On Display Mode There are many factory presets optimized for various types of images Bright For brightness optimization Presentation For meeting prese...

Page 32: ...e image Press to decrease the contrast Press to increase the contrast Saturation Adjusts a video image from black and white to fully saturated colors Press to decrease the amount of color in the image Press to increase the amount of color in the image Tint Adjusts the color balance of red and green Press to increase the amount of green in the image Press to increase the amount of red in the image ...

Page 33: ... full use of the horizontal and vertical pixels 4 3 The image will be scaled to fit the screen and displayed using a 4 3 ratio 16 9 The image will be scaled to fit the screen and displayed using a 16 9 ratio L Box for WXGA 1080p models Keeps the original signal aspect ratio and zooms in by 1 333 times Auto Keystone Automatically adjusts image distortion caused by tilting projection 40 degrees Manu...

Page 34: ...s function to correct it HDMI Color Range Adjusts the color range of the HDMI image data to prevent color display error Auto Automatically adjusts the color range by information from the player Limited Range Processes the input image as limited color range data Full Range Processes the input image as full color range data HDMI Scan Info Adjusts the overscan ratio of the HDMI image on screen Auto A...

Page 35: ...ching input signals you need to press SOURCE on the control panel or remote control or the direct source key on the remote control Auto The projector will detect your source automatically Closed Caption Selects a preferred closed captioning mode from CC1 CC2 CC3 CC4 CC1 displays captions in the primary language in your area Select Off to turn off the captioning feature This function is only availa...

Page 36: ...ity function for the administrator to manage the projector Press to change the Security setting If the security function is enabled your must enter Administrator Password first before changing the security setting The factory default of Administrator Password is 1234 Select On to enable the security function You have to enter password depending on the Security Mode Please refer to User Password se...

Page 37: ...se the numerical keys on the remote control to set the password and press MENU to confirm To delete the digits Press Enter the password again when you see Confirm Password displayed The password should be 4 8 digits in length If you select Request password only after plugging power cord you are requested to input the password every time the power cord is plugged If you fail to enter the correct pa...

Page 38: ...e 6 digit Universal Password which is printed on the Security Card that came with your projector This unique password will be accepted by the projector no matter what the administrator password is If the Security Card is lost please contact your local Acer service center Lock User Startup Screen This function is set to OFF by default If set to ON the startup screen is locked and cannot be changed ...

Page 39: ...our last key press Manual The OSD menu remains active The only way to launch or exit the OSD menu is by pressing MENU AC Power On Selecting On enables the function The projector will automatically turn on when power is supplied via the power cord Control Panel Lock Off Allows all keys on the control panel to operate normally Child Lock Disables the Power key on the control panel when the projector...

Page 40: ...amp Hour Reset Press ENTER after choosing Yes to reset the lamp hour counter to 0 hours Information Displays current status of this projector Volume Press to decrease the volume Press to increase the volume Mute Choose On to turn mute on Choose Off to turn mute off Power On Off Volume Select this function to adjust the notification volume when turning the projector on off Alarm Volume Select this ...

Page 41: ...3D format that suits the 3D content you are viewing and obtain the best result 24P 3D Choose 96Hz or 144Hz for 24p 3D 3D L R Invert If you see a discrete or overlapping image while wearing DLP 3D glasses you may need to execute Invert to get best match of left right image sequence to get the correct image for DLP 3D 3D Warning Message Choose On to display the 3D warning message Signal source type ...

Page 42: ...Index_en aspx DDD TriDef Media Player Trial http www tridef com download TriDef 3 D Experience 4 0 2 html Note 3D L R Invert and 3D Format are only available when 3D is enabled Language Language Sets a language for the OSD menus Use to select your preferred language ...

Page 43: ...C For an incorrectly displayed image Open My Computer Control Panel and then double click the Display icon Select the Settings tab Verify that your display resolution setting is lower than or equal to 1600 x 1200 or 1920 x 1080 Click the Advanced Properties button If the problem still appears change the monitor display you are using and follow the steps below Verify that the resolution setting is ...

Page 44: ...e or flickering Use Tracking to correct it Refer to the Image section for more information Change the display color setting on your computer 6 Image has vertical flickering bar Use Frequency to make an adjustment Refer to the Image section for more information Check and reconfigure the display mode of your graphics card to make it compatible with the projector 7 Image is out of focus Adjust the fo...

Page 45: ... control to open the OSD menu Go to Image Auto Keystone or Image Manual Keystone to make adjustments 11 Image is reversed Select Image Projection Mode Image Projection Location on the OSD and adjust the projection direction Condition Solution 1 The projector stops responding to all controls If possible turn off the projector then unplug the power cord and wait at least 30 seconds before reconnecti...

Page 46: ... operating temperature and must be allowed to cool down before it is used Replace the lamp the lamp is about to reach its maximum lifetime Prepare to replace it soon Fan Fail Lamp will automatically turn off soon Projector Overheated Lamp will automatically turn off soon Lamp is approaching the end of its useful life in full power operation Replacement suggested ...

Page 47: ...Red Standby Power cord plugged in V Power on V Lamp retry Quick flashing Turning off Cooling state Quick flashing Turning off Cooling completed V Firmware download V V V Error Thermal failure V V Error Fan lock failure V Quick flashing Error Lamp breakdown V V Error Color wheel failure V Quick flashing ...

Page 48: ...w 1 Drill four holes into a solid structurally sound part of the ceiling and secure the mount base 2 Choose the length combination based on actual environment CM 01S doesn t include Type 2 and Type 3 3 Type 1 For the standard size use three bracket screws to mount the projector to the ceiling mount bracket Type 1 Type 2 Type 3 ...

Page 49: ... that you keep a reasonable space between the bracket and the projector to allow for proper heat distribution 4 Connect the main body connector to the projector bracket illustration 1 and then screw up four screws illustration 2 5 Adjust the angle and positioning as necessary Type 1 Type 2 Type 3 Illustration 1 Illustration 2 360 ...

Page 50: ...40 English Screw Type B Washer Type Diameter mm Length mm Large Small 4 25 V V 58 85 16 85 42 148 15 165 207 107 54 69 50 38 04 92 7 299 5 105 1 91 6 44 58 Unit mm ...

Page 51: ... x 1080 WUXGA 1920 x 1200 supports reduce blanking only Computer compatibility Refer to the Compatibility Modes section for more information Video compatibility NTSC 3 58 4 43 PAL M N PAL 60 SECAM HDTV 720p 1080i 1080p EDTV 480p 576p SDTV 480i 576i Aspect ratio P1150 M306 PE S45 F25S AS329 P1250 M316 PE X45 F25X AX329 Auto 4 3 native 16 9 P1350W M326S PE W45S F25WS AW329S P1350WL M326 PE W45 F25W ...

Page 52: ...9 1 55 1 7 60 3 2 m Horizontal scan rate 15 100 KHz Vertical refresh scan rate 24 120 Hz Keystone correction 40 Degrees Vertical Manual Auto Digital zoom 0 8 2 X Audio P1150 M306 PE S45 F25S AS329 3W speaker x 1 P1250 M316 PE X45 F25X AX329 P1350W M326S PE W45S F25WS AW329S P1350WL M326 PE W45 F25W AW329 10W speaker x 1 Weight Approximate 2 4 kg 5 29 lbs Dimensions W x D x H 299 5 x 220 x 91 6 mm ...

Page 53: ...dio jack input x 1 3 5 mm audio jack output x 1 Composite video x 1 HDMI MHL x 1 HDMI x 1 USB Type A DC 5V OUT x 1 Standard package contents AC power cord x 1 Remote control x 1 Battery x 2 for the remote control Quick start guide x 1 Accessory optional User s guide CD ROM x 1 VGA cable x 1 HDMI cable x 1 Security card x 1 Carrying case x 1 WirelessHD dongle kit MWIHD1 x 1 ...

Page 54: ...88 85 53 67 120 77 43 XGA 1024 x 768 60 48 36 70 56 48 75 60 02 85 68 68 120 98 96 SXGA 1152 x 864 70 63 85 75 67 50 85 77 10 1280 x 1024 60 63 98 72 76 97 75 79 98 85 91 15 QuadVGA 1280 x 960 60 60 00 1280 x 960 75 75 00 SXGA 1400 x 1050 60 65 32 UXGA 1600 x 1200 60 75 00 PowerBook G4 640 x 480 60 31 50 640 x 480 66 6 67 35 00 800 x 600 60 37 88 1024 x 768 60 48 36 1024 x 768 75 60 241 1152 x 870...

Page 55: ...de Resolution V Frequency Hz H Frequency KHz VGA_60 640 x 480 59 94 31 469 VGA_72 72 809 37 861 VGA_75 75 37 5 VGA_85 85 008 43 269 VGA_120 119 518 61 91 SVGA_56 800 x 600 56 25 35 156 SVGA_60 60 317 37 879 SVGA_72 72 188 48 077 SVGA_75 75 46 875 SVGA_85 85 061 53 674 SVGA_120 119 854 77 425 XGA_60 1024 x 768 60 004 48 363 XGA_70 70 069 56 476 XGA_75 75 029 60 023 XGA_120 119 804 98 958 SXGA_75 11...

Page 56: ...09 101 563 WXGA _60 1440 x 900 59 887 55 935 1680x1050_60 1680 x 1050 59 954 65 29 acer_16 9 1366 x 768 59 79 47 712 1920 x 1080_RB 1920 x1080 60 66 587 1920 x 1080_EIA 1920 x1080 60 67 5 acer_timing 1024 x 600 60 37 5 1920 x 1200 RB 1920 x 1200 59 95 74 038 Mode Resolution V Frequency Hz H Frequency KHz 480i 720 x 480 1440 x 480 60 15 73 480p 720 x 480 60 31 47 576i 720 x 576 1440 x 576 50 15 63 ...

Page 57: ...1920 x 1080 50 56 26 1080p 1920 x 1080 60 67 5 Mode Resolution V Frequency Hz H Frequency KHz 480i 720 x 480 59 94 15 73 480p 720 x 480 59 94 31 47 576i 720 x 576 50 00 15 63 576p 720 x 576 50 00 31 25 720p 1280 x 720 60 00 45 00 720p 1280 x 720 50 00 37 50 1080i 1920 x 1080 60 00 33 75 1080i 1920 x 1080 50 00 28 13 1080p 1920 x 1080 60 00 67 5 1080p 1920 x 1080 50 00 56 26 1080p 1920 x 1080 24 00...

Page 58: ...e into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio television technician for help Notice Shielded cables All connections to other computing devices must be made using shielded cables to maintain compliance with FCC regulations Notice Peripheral devices Only peripherals input output devices terminals printers etc certified...

Page 59: ...mplies with the radio frequency and safety standards of any country or region in which it has been approved for wireless use Depending on configurations this product may or may not contain wireless radio devices such as wireless LAN and or Bluetooth modules Canada Low power license exempt radio communication devices RSS 210 a Common information Operation is subject to the following two conditions ...

Page 60: ... must be used in strict accordance with the regulations and constraints in the country of use For further information please contact a local office in the country of use Please see http ec europa eu enterprise rtte implem htm for the latest country list ...

Page 61: ...5024 2010 A1 2015 EN 61000 3 2 2014 EN 61000 3 3 2013 LVD Directive 2014 35 EU EN 60950 1 2006 A11 2009 A1 2010 A12 2011 A2 2013 RoHS Directive 2011 65 EU EN 50581 2012 ErP Directive 2009 125 EC Regulation EU No 617 2013 Regulation EC No 1275 2008 EN 50564 2011 Regulation EC No 278 2009 EN 50563 2011 We Acer Incorporated hereby declare under our sole responsibility that the product described above...

Page 62: ...ce may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The following local Manufacturer Importer is responsible for this declaration Product DLP Projector Model Number AWX1709 AWX1710 ANX1711 ASV1712 series Name of Responsible Party Acer America Corporation Address of Responsible Party 333 West San Car...

Page 63: ...nty Minimum three year availability of spare parts Product takeback Packaging Limits on hazardous substances in product packaging Packaging prepared for recycling Ergonomic User centered design Visual ergonomics in products with a display Adjustability for user comfort displays headsets Acoustic performance protection against sound spikes headsets and fan noise projectors computers Ergonomically d...

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