Specification:
1.Loudhailer Diameter: 40mm
2.Frequency Range: 20-20KHz
3.Sensitivity: 118±3dB
4.Impedance: 32Ohm±15%
5.Mic Diameter: 6.0 x 5.0mm
6.Mic Sensitivity: -38+-3dB
7.Mic Impedance: 2.2kohm
8.Directionality: Omni-directional
9.Working Current: ≤100mA
10.Input Plug: 3.5mm 4Pin + USB (for LED)
11.Cable Length: Approx. 2.2m±0.15