ZONE 305 | Headset | Wearing style Head-band | Car/Home office | Headset type Binaural | Colour Black | Cable length 1 m | Adjustable headband Yes | Connectivity technology Wireless | Bluetooth Yes | 5.3 | Frequency response (music mode) 50 - 20000 Hz | Wireless range 30 m | Ear coupling Supraaural | Headphone sensitivity 96 dB | Noise canceling Yes