Specifications:

Plug Type: USB

Speaker Diameter: φ50MM

Sensitivity: 120±3dB S.P.L. at 1KHz

Frequency Response: 20~20000 Hz

Rated Power: 20 mW

Power Capability: 30 mW

Impedance: 32Ω±15%

Mic Dimensions: Φ6 * 2.7mm

Sensitivity: -38±2dB (0dB =1V/PA)

Impedance: ≤ 2.2K Ω(Max)

Rated Voltage: 5V

Rated Input current: 100~450 mA

Cord Length: ≥2.2M