Using The Audio Cable - Sennheiser HD 4.50BTNC, HD 4.50R Instruction Manual

Using the audio cable

Using the audio cable
Use the audio cable to listen to music when the headphones are running out of
battery or when Bluetooth transmission is restricted or not allowed.
The headphones immediately switch off once 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
deactivate NoiseGard when the audio cable is connected, see page 21.
Inserting the audio cable
1. Insert the 2.5 mm jack plug into the audio input of the headphones.
Bluetooth is deactivated.
2. Connect the 3.5 mm jack plug to the audio output of your smartphone.
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