HD 4.50BTNC | 21
Using the headphones
Using NoiseGard
The HD 4.50BTNC Wireless headphones provides excellent attenuation of
ambient noise using the NoiseGard Active Noise Cancellation technology.
You can activate or deactivate NoiseGard if your headphones are connected to
the smartphone using Bluetooth or the audio cable.
Activating/deactivating NoiseGard when connected via Bluetooth
X Simultaneously press and hold the Volume +/- buttons.
The LED flashes purple 3 times. NoiseGard toggles between on and off.
Activating/deactivating NoiseGard when the audio cable is used
X Press the power button.
The LED lights up blue to indicate that NoiseGard is active. NoiseGard toggles
between on and off.
To Next Page
Loading...
