1.Speaker diameter:Φ40mm
2.Impedance: 32 Ω at 1kHz
3.Sensitivity: 105dB±3dB S.P.L. a 1kHz
4.Frequency response: 20~20kHz
5.Maximum Power: 80mW
6.Microphone: 6x5/-58dB±2dB
7.Plug: Φ3.5mm Stereo
8.Cord length: Approx. 1.2m
9.Interface:3.5mm*1
10.Master carton size:68*39*53cm, 60PCS/CTN, GW:15KG