Item No.:YC-SP021
Size:ф62*H60mm
Weight:245g
Materail: metal 
Bluetooth Version:V2.1+EDR
Transmission Power:CLASS2 4dBm 
Working voltage: DC 3.7V 
Working frequency: 2.4GHz 
Charging voltage: DC5V/500mA 
Signal to Noise Ratio: ≥65 db 
THD:≤ 0.1% (3.7V/1KHz/1.8W) 
Battery capacity: 400MA 
Color:red,blue,white,black,siliver
Packaging:color box/customized