Sennheiser’s inaugural travel headphones with NoiseGard digital and TalkThrough functions, Excellent passive attenuation of ambient noise, Audio transmission always works – even in passive mode and without the batteries
- NoiseGard / digital Active Noise Cancellation: Choice of 3 different modes to suit your listening environment.
- Excellent passive attenuation of ambient noise of 25 dB (for frequency range above 300)
- Audio transmission always works - even in passive mode & without the batteries
- Box has been opened to inspect and test.