Instruction manual HD 450BT
Page 2
... may leak. Preventing damage to the product and malfunctions ▷ Always keep the product dry and do not cover the microphone openings of the active noise cancellation circuitry located on to third parties. ▷ Do not use the product if it is... of: • heat generation, • fire development, • explosion, • smoke or gas development. 2 | HD 450BT Safety instructions for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels. ▷ The product generates stronger permanent magnetic fields that requires your ...
... may leak. Preventing damage to the product and malfunctions ▷ Always keep the product dry and do not cover the microphone openings of the active noise cancellation circuitry located on to third parties. ▷ Do not use the product if it is... of: • heat generation, • fire development, • explosion, • smoke or gas development. 2 | HD 450BT Safety instructions for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels. ▷ The product generates stronger permanent magnetic fields that requires your ...
Instruction manual HD 450BT
Page 7
Product overview Volume - HD 450BT | 7 the headphones flashes blue 3x switch on flashes blue are switched on 3x flashes blue 3x are connected to a device via Bluetooth flashes red/ blue ... contacts and charge the headphones until the LED lights up ) 3-way multi-function button for music and call functions Voice assistant button Ear pads Speech microphones (2 pcs.) for phone calls Overview of the LED display During operation LED 3x Meaning; button (volume down) Volume + button (volume up again (> 11...
Product overview Volume - HD 450BT | 7 the headphones flashes blue 3x switch on flashes blue are switched on 3x flashes blue 3x are connected to a device via Bluetooth flashes red/ blue ... contacts and charge the headphones until the LED lights up ) 3-way multi-function button for music and call functions Voice assistant button Ear pads Speech microphones (2 pcs.) for phone calls Overview of the LED display During operation LED 3x Meaning; button (volume down) Volume + button (volume up again (> 11...
Instruction manual HD 450BT
Page 20
...use the headphones - To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on ". 2. You hear the voice prompt "Power on the outside of the ear...phones off button 1x. Activating/deactivating the active noise cancellation ANC To activate the active noise cancellation ANC: 1. ANC is deactivated. 20 | HD 450BT In this case, deactivate ANC. • If unusual (whistling or beeping) noise occurs, take the head- To deactivate the active noise cancellation...
...use the headphones - To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on ". 2. You hear the voice prompt "Power on the outside of the ear...phones off button 1x. Activating/deactivating the active noise cancellation ANC To activate the active noise cancellation ANC: 1. ANC is deactivated. 20 | HD 450BT In this case, deactivate ANC. • If unusual (whistling or beeping) noise occurs, take the head- To deactivate the active noise cancellation...
Instruction manual HD 450BT
Page 31
...Version Transmission frequency Modulation Output power Profiles Codec Bluetooth 5.0 compatible, class 1, BLE 2,402 MHz to 6,000 Hz (-3 dB) Microphone pick-up pattern dual omni-directional microphones (speech audio) 2-mic beamforming array Power supply built-in rechargeable lithium-polymer battery: 3.7 V ⎓, 600 mAh USB charging... 108 dB (1 kHz/0 dBFS) THD (1 kHz, 100 dB SPL) < 0.3 % (1 kHz, 100 dB SPL) Microphone principle MEMS Microphone frequency response 80 Hz to 2,480 MHz GFSK, π/4 DQPSK, 8DPSK 12.6 mW (max) HSP, HFP, AVRCP, A2DP aptX, aptX LL, AAC, SBC HD 450BT | 31
...Version Transmission frequency Modulation Output power Profiles Codec Bluetooth 5.0 compatible, class 1, BLE 2,402 MHz to 6,000 Hz (-3 dB) Microphone pick-up pattern dual omni-directional microphones (speech audio) 2-mic beamforming array Power supply built-in rechargeable lithium-polymer battery: 3.7 V ⎓, 600 mAh USB charging... 108 dB (1 kHz/0 dBFS) THD (1 kHz, 100 dB SPL) < 0.3 % (1 kHz, 100 dB SPL) Microphone principle MEMS Microphone frequency response 80 Hz to 2,480 MHz GFSK, π/4 DQPSK, 8DPSK 12.6 mW (max) HSP, HFP, AVRCP, A2DP aptX, aptX LL, AAC, SBC HD 450BT | 31