Sennheiser HD1 M2 AEBT Instruction Manual
![Sennheiser HD1 M2 AEBT manual cover](/images/4ad205ca7ce64f7e4cc902b9/thumbs/thumb175x175.webp)
To pair your Sennheiser HD1 M2 AEBT with a Bluetooth device, turn on the headphones and press the power button for 4 seconds until you hear the voice prompt saying "pairing." Activate Bluetooth on your device and select "HD1 M2 AEBT" from the list of available devices.
If your headphones are not charging, ensure the USB cable is properly connected to both the headphones and a power source. Try using a different USB cable or power source to rule out cable or charger issues. Check for debris in the charging port and clean it if necessary.
To reset your headphones to factory settings, turn them off, then press and hold the power button for about 10 seconds until you hear the voice prompt saying "restarting" followed by "pairing." This will delete all pairing information.
Yes, you can use the headphones with a wired connection by plugging the included audio cable into the headphone jack. This is useful if the battery is low or if you prefer a wired connection.
To update the firmware, download the Sennheiser Smart Control app on your smartphone, connect your headphones via Bluetooth, and follow the app's instructions to check for and install any available firmware updates.
The Sennheiser HD1 M2 AEBT offers up to 22 hours of battery life with Bluetooth and NoiseGard active noise cancellation enabled. Battery life may vary depending on usage and settings.
To improve sound quality, ensure a proper fit of the headphones, update the firmware, and use high-quality audio sources. Adjust the equalizer settings on your audio device or the Sennheiser Smart Control app to tailor sound to your preferences.
If noise cancellation is ineffective, ensure it is enabled by checking the switch on the headphones or the settings in the app. Make sure the headphones fit snugly over your ears and update the firmware if necessary.
To clean your headphones, gently wipe the outer surface with a soft, damp cloth. Avoid using strong cleaning agents and ensure no moisture gets into the electronics. Store the headphones in the provided case when not in use to protect them from damage.
If the Bluetooth connection is unstable, ensure the device is within range and there are no physical obstructions. Try disconnecting and reconnecting the Bluetooth connection, or reset the headphones and re-pair them with your device.