Sennheiser HD 4.50BTNC Instruction Manual Download Page 34

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HD 4.50BTNC/HD 4.50R

| 33

Specifications

HD 4.50BTNC/HD 4.50R Wireless

Ear coupling

closed, circumaural

Frequency response

18 - 22,000 Hz

Transducer principle

dynamic

Sensitivity (microphone)

100 - 10,000 Hz

Sound pressure level (SPL)

113 dB (1 kHz / 1 V

rms

)

THD (1 kHz, 100 dB)

< 0.5%

Pick-up pattern

dual omni-directional microphones

Noise compensation

NoiseGard

™ active noise cancellation

Input power

3.7 VDC, 600 mAh:

built-in rechargeable

Lithium-Polymer battery

5 VDC, 400 mA:

USB charging

Operating time

19 hours (

Bluetooth

and

NoiseGard

on)

25 hours (

Bluetooth

only)

Charging time

approx. 2 hours

Weight

approx. 238 g

Battery

Lithium Polymer

Connectivity

Bluetooth

version 4.0/NFC pairing

Audio cable
(optional/detachable)

1.4 m audio cable, 3.5 mm angled plug,
gold-plated

Connector

USB charging cable

Maximum value of the static mag-
netic field at the surface

2.4 mT

Summary of Contents for HD 4.50BTNC

Page 1: ...HD 4 50BTNC HD 4 50R SCBT7 Instruction manual Wireless headphones...

Page 2: ...sting the headband 18 Using the headphones 19 Switching the headphones on 19 Switching the headphones off 19 Adjusting the volume 20 Using NoiseGard 21 Playing music 22 Controlling music playback 23 M...

Page 3: ...10 cm 3 94 from cardiac pacemakers or implanted defibrillators The headphones contain magnets that generate a magnetic field which could cause interference with cardiac pacemakers and implanted defib...

Page 4: ...chments accessories Safety instructions for the Lithium Polymer battery pack WARNING In extreme cases abuse or misuse of the Lithium Polymer battery pack can lead to explosion fire development heat ge...

Page 5: ...communication with their NoiseGard Active Noise Cancellation feature long lasting battery life and robust foldable design Features Closed circumaural design featuring Bluetooth wireless technology Ro...

Page 6: ...unication between NFC capable electronic devices by placing them near one another or with a single touch NoiseGard The NoiseGard active noise compensation system is based on the principle of cancellin...

Page 7: ...ble with 2 5 mm and 3 5 mm jack plug USB charging cable with micro USB connector Quick guide Quick guide Safety guide Safety guide A list of accessories can be found at www sennheiser com For informat...

Page 8: ...r pads 7 Multifunction button 3 Ear cups 8 Volume buttons 4 NFC panel 9 Audio input 5 LED 0 Micro USB input Overview of pictograms Pictograms for pressing a button Pictogram Meaning 1x Press and immed...

Page 9: ...g Examples of pictograms that may be used in this manual Pictogram Meaning 5m The LED flashes continuously 3s The LED lights up for 3 seconds then off and repeat 2s 2s The LED lights up then off for 2...

Page 10: ...Bluetooth range of the device Pairing with a device is unsuccessful 1s The headphones are in pairing mode The device is devices are successfully cleared from the headphones NoiseGard is activated deac...

Page 11: ...x Accepts ends a call Accepts an incoming call and holds the active call Plays pauses a track 24 24 23 2x Redials the last number called Holds unholds a call Accepts an incoming call and ends the acti...

Page 12: ...HD 4 50BTNC HD 4 50R 11 Product overview Volume buttons Press Function Page 1x Increases decreases the volume 19...

Page 13: ...low level a voice prompt asks you to recharge the headphones It is recommended to charge the headphones using only the supplied USB cable If you charge the headphones using an external USB power adapt...

Page 14: ...nect the USB plug to the power adapter or to the USB car charger adapter and connect to the power source The LED flashes lights up depending on the battery life of the headphones The headphones utiliz...

Page 15: ...compatible Bluetooth device that sup ports the following profiles X X Hands Free Profile HFP X X Headset Profile HSP X X Audio Video Remote Control Profile AVRCP X X Advanced Audio Distribution Profi...

Page 16: ...hones with other devices using NFC regardless of the headphones power state on or off 1 Activate NFC on your smartphone 2 Scan the smartphone to the NFC panel on the left ear cup of the headphones You...

Page 17: ...ntil you hear the voice prompt power on and a beep sound The LED flashes blue and red The headphones are in pairing mode 2 Activate Bluetooth on your smartphone 3 On your smartphone start a search for...

Page 18: ...ce X X Deactivate Bluetooth on your smartphone The headphones are disconnected from the smartphone The headphones then search for other paired devices If no device is found you hear the voice prompt l...

Page 19: ...and to properly match the size of your head X X Wear the headphones so that the headband runs over the top of your head X X Adjust the location of the ear pads by moving the ear cups up and down the h...

Page 20: ...s X X Before putting the headphones on set the volume to a low level X X Do not continuously expose yourself to high volume levels X X Press the power button for 2 seconds You hear the voice prompts p...

Page 21: ...permanently damage your hearing X X Before putting the headphones on and before switching between audio sources adjust the volume to a low level X X Do not continuously expose yourself to high volume...

Page 22: ...your headphones are connected to the smartphone using Bluetooth or the audio cable Activating deactivating NoiseGard when connected via Bluetooth X X Simultaneously press and hold the Volume buttons...

Page 23: ...tically plays music wirelessly in stunning aptX audio quality If your audio source does not support aptX the HD 4 50BTNC HD 4 50R Wireless plays music in normal audio quality X X Pair connect your hea...

Page 24: ...ll functions Playing pausing track X X Quickly press the multifunction button Press Function 1x Plays or pauses music Playing the next previous track X X Push the multifunction button up or down Push...

Page 25: ...ing rejecting ending a call If your headphones are connected to a smartphone and you receive a call you hear a ring tone in the headphones and the LED flashes blue If the battery life of the headphone...

Page 26: ...ones to the smartphone Transfers a call from the smartphone to the headphones Redialing The redialing function must be supported by your smartphone or Bluetooth device with HFP profile This function m...

Page 27: ...smartphones with HFP profile You can use this function when the headphones are not actively playing music or are used for making calls 1 Press the multifunction button and hold for 2 seconds Press Fun...

Page 28: ...the audio cable is plugged into the audio input If the battery of the headphones is sufficient you can switch NoiseGard on to benefit from the noise cancelling feature of the headphones To activate or...

Page 29: ...om this product X X Do not use any solvents or cleaning agents Replacing the ear pads For reasons of hygiene you should replace the ear pads from time to time Spare ear pads are available from your lo...

Page 30: ...tenance Storage and handling To keep the headphones in good condition and to avoid nicks and scratches fold the ear cups inwards towards the headband and store the headphones in the carry case when no...

Page 31: ...be null and void X X Contact your Sennheiser service center if the rechargeable battery needs to be replaced or removed To find a Sennheiser service partner in your country visit www sennheiser com O...

Page 32: ...on Bluetooth is deactivated on your smartphone Activate Bluetooth on your smartphone Headphones do not respond to any button press Headphones are not functioning properly Restart the headphones by swi...

Page 33: ...ne the sound quality deteriorates and you hear the voice prompt lost connection At this point the connection breaks down completely You can re establish the connection if you re enter the Bluetooth tr...

Page 34: ...s Noise compensation NoiseGard active noise cancellation Input power 3 7 VDC 600 mAh built in rechargeable Lithium Polymer battery 5 VDC 400 mA USB charging Operating time 19 hours Bluetooth and Noise...

Page 35: ...electronic GmbH Co KG is under license The N Mark is a trademark or registered trademark of NFC Forum Inc in the United States and in other countries The aptX mark and the aptX logo are trademarks of...

Page 36: ...Sennheiser Communications A S Industriparken 27 DK 2750 Ballerup Denmark www sennheiser com Publ 07 19 A02...

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