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 diameter:φ40mm
Frequency range:20-20000 Hz
Sensitivity:100dB
Impedance :32ohm
Maximum power input:100mW
Plug Type:3.5mm stereo