Headset  Main technical indexes:

1)headset  Impedance :2×16Ω; 2X32;
2)headset  Sensitivity : 110±3dB
3)headset  Frequency range : 20~20000Hz
4)headset  Rated power : 2×100mW

Headset   MIC
1)headset Impedance : 1800Ω  (200Ω dynamic)
2) headset Sensitivity : -48±3dB
3)headset Directivity : omnidirectional
4)headset Frequency response : 30~16000Hz

Headset Model Number: 888
Style: Headband
communication: Wired 
Connectors: 3.5mm or 5 pin plug
Use: Portable Media Player 
Function: Noise Cancelling
headset Place of Origin: China (Mainland)
Function: Multimedia