Instruction manual
Table Of Contents
- Important safety instructions
- Package contents
- Product overview
- Getting started
- Using the headphones
- Information on the rechargeable battery and the charging process
- Charging the headphones' rechargeable battery
- Connecting the headphones to a Bluetooth device
- Information on the Bluetooth wireless connection
- Pairing the headphones with a Bluetooth device
- Disconnecting the headphones from a Bluetooth device
- Installing the Smart Control app
- Switching the headphones on
- Switching the headphones off
- Putting the headphones on and adjusting the headband
- Retrieving information on the battery charge status
- Adjusting the volume
- Information on active noise cancellation ANC
- Activating/deactivating the active noise cancellation ANC
- Listening to music using the headphones
- Controlling music playback
- Making phone calls using the headphones
- Using the voice assistant/voice dialing
- Using Amazon Alexa as voice assistant
- Adjusting sound effects/the equalizer
- Using the audio cable/activating flight mode
- Connecting the headphones using the audio cable
- Storing and transporting the headphones
- Care and maintenance
- FAQ/If a problem occurs ...
- Specifications
- Manufacturer Declarations
FAQ/If a problem occurs ...
HD 450SE | 33
When using the analog audio cable, the music only plays on one
side of the headphones
The jack plug of the audio cable is not properly locked in place in the
headphones' audio socket:
1. Insert the 2.5 mm jack plug of the audio cable straight into the
headphones' audio socket until you feel a resistance.
2. Turn the 2.5 mm jack plug to the right until you feel a resistance.
The jack plug is now locked in place and the audio cable is cor-
rectly connected to the headphones.
3. Insert the 3.5 mm jack plug of the audio cable into the audio
output of your smartphone.
The Bluetooth connection is deactivated.
Right R
Audio cable
2.5 mm
3.5 mm
OFF
ON