Speaker size: 50mm
Impedance: 15Ω+-15%,
Sensitivity: 102+-3db,
Frequency range: 20HZ-20KHZ
Microphone size: 6.0*5.0mm
Microphone sensitivity: -38+-3dB
Microphone impedance: ≦2.2KΩ
Directionality: omnidirectional
Line length: 2.0M+-0.15
LED working voltage: DC5V+-5%
Working current: ≦180mA
Headphone jack: USB+3.5MM