1. Line length: 1.2 meters
2. Plug: 3.5mm
3. Speaker: 10mm
4. With ear line control
5. Frequency response range: 20 to 20000Hz
6. Line control function description: answer the phone, the volume increase and subtraction
7. Channel system: surround stereo sound
8. Power: 1-3MW
9. Wiring: TPE wire /weaving cable (features: metal with magnetic suction)
10. Mi head sensitivity: -29dbfs