1. Ergonomic design, no pain to wear for a long time
2. Soft earmuffs, adjustable head beam, 90 degree rotation, 180 degree inversion
3. 50mm driver unit, stereo surround sound
4. Detachable microphone, volume control
5. Unidirectional microphone, intelligent noise reduction
6. 2m cable with volume control, mute button
7. 3.5mm boom microphone
8. Plug diameter: 3.5mm
9. Frequency response: 20-20000Hz
10. Sound principle: moving coil
11. Impedance: 32 ohms
12. Sensitivity: 110dB
13. How to use: head-mounted
14. Packing list: earphone + 3.5mm Y-type extension cable + instruction manual + packing box
