Ayda Max USB | Headset | Wearing style Head-band | Office/Call center | Headset type Binaural | Colour Black | Volume control Rotary | Adjustable headband Yes | Sound pressure level (max) 90 dB | Connectivity technology Wired | USB connectivity Yes | Ear coupling Circumaural | Headphone frequency 20 - 20000 Hz | Headphone sensitivity 95 dB