Bluetooth Headset

Specifications: Driver unit: 40mm diameter

Frequency response：15Hz-20KHz.                                                             
Sensitivity:115db s.p.l at 1khz         
Impedance：8HM（Ω）
S/N ratio：≥85db                                 
Out power：0.25Wx2
Lithium battery：3.7V 300MA           
DC input voltage：3.7V
Continuous working time:7-8hours                                                            
Accessory:charge cable
Bluetooth version:V3.0+EDR
Blue profile:Hands-Free(HSP)Profile V1.5  
Headset(HSP)Profile V1.1A2DP,AVRCP        
Charging time:2.5hours                                                               
Operating distance:10M