Mic size: 6*2.7mm
Mic sensitivity: -38 ±3dB
Micdirectivity: omnidirectional
Mic impedance: 2.2K
Speaker diameter 40mm
Speaker frequency range: 20Hz~20KHz
Speaker impedance: 32 �?�±15%
Speaker sensitivity: 110 �?�±3dB
Wire length: 2.0m
Working current: 100MA
Working voltage: DC5V
Headphone connector: 3.5mm 4PIN (1 plug) + USB/ 3.5mm 4PIN (1 plug)
Color: black, black orange, black green, black blue