1. Adjustable headband, wearing comfortable.
2. The function of the noise elimination technique,
3. Omnidirectional microphone, clear voice rebounded,
4. Super comfortable soft mattress
5. With the volume control.
speaker dimension:φ40mm
Frenquency range:20-20.000Hz
Sensitivity :103dB S.P.L 1 KHz
Impedance:32 ohm
Rated power 15mW
Power capability:150mW