Speaker:

Speaker diameter: Ф50mm 

Impedance: 32Ω

Sensitivity: 119±3dB（at 1KHz）

Frequency response: 20Hz-20KHz

Mic:

Mic diameter: Ф6mm 

Mic impedance : ≤2.2KΩ

Mic directivity: all-direction

Mic sensivity: -42±3dB (at 1KHz)

Interface：

Plug Model：3.5/USB