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
Using the headphones
16 | HD 450SE
Switching the headphones on
1. Unfold both ear cups.
The joints click into place.
2. Press and hold the on/off button for 2 seconds.
The LED flashes blue 3x. You hear the voice prompt “Power on”.
If Bluetooth is activated on the headphones and a paired device is
available, the LED flashes blue 3x and you hear the voice prompt
“Connected”.
If Bluetooth is deactivated on the headphones(> 26), you hear the
voice prompt “Power on” and the active noise cancellation ANC
may be activated
(> 20).
WARNING
Danger of hearing damage due to high volume levels!
Listening at high volume levels can lead to permanent
hearing defects.
▷ Before putting the headphones on, adjust the volume
to a low level (>
19).
▷ Do not continuously expose yourself to high volume
levels.
Make sure that Bluetooth is already activated on your Blue-
tooth device when switching on the headphones.
If Bluetooth is activated and the headphones cannot find a
paired Bluetooth device within a few minutes, you hear the
voice prompt “Lost connection”. The LED flashes red 3x. The
headphones switch to standby mode.
1 2
2s
Hold
“Power on“
“Connected“
ON