Material:ABS material and rubber
Speaker Diameter:⌽40mm
Impedance:4Ω±10%
Audio-Frequency Range:200~20KHz
Output Sensitivity and Power:81±3db*3w
Microphone Size:4.5*2.2
Microphone Sensitivity:-36DB±2DB
Microphone Impedance:2.2KΩ
Bluetooth Proposal:Bluetooth V3.0 ,Can support HFP,A2DP and AVRCP,TF
Chip:JIANRONG
Transmission Range:10M
Working Time:4 or 6 Hours
Charging Time:2.5Hours
Speaker Function:Support TF,3.5mm audio input,hands-free call,Bluetooth music playing,voice prompt,USB flash disk