*Plug model: Φ3.5mm*1
*Speaker diameter:40mm
*Speaker Impedance: 32Ohm
*Frequency response: 20Hz~20Khz
*Speaker sensitivity: 110db±3db
*Micphone : Φ6*2mm
*Fixed Mic
*Micphone Directivity: Omni directional
*Headphones Wire Length: 1.5M±0.1M
*PVC cable
*Without Light
45 days