Swiss Cougar Vienna Noise Cancelling Headphones

Luxurious and comfortable over ear headphones, with noise cancelling technology, which reduces outside noise and interference. Supports playback from smartphones, tablets or most other Bluetooth compatible audio devices.16.3 ( l ) x 7.3 ( w ) x 18.5 ( h ) cmAluminium, ABS & PUCase: 18.5 ( l ) x 14 ( w ) x 8 ( h ) cmEVABluetooth version 5.010m visible distance • Built-in microphone supports call pick-up500mAh with lithium battery • Charge time: 2 hoursPlayback time: 12 hours for ANC mode ; 16 hours for Bluetooth only modeCancelling DB: 20db • Noise cancellation frequency range: 50 - 1200HzSignal Noise Ratio ( SNR ) : > 90dBSensitivity: 115dB