Dimensions£ºDiameter 90MM X 43MM thick 
Speaker: ¦µ45mm Internal magnetic 16 chip  3¦¸3W cone speaker

Compliance with Bluetooth V2.1 + EDR (A2DP) Bluetooth specification 
Transmission distance:¡Ư10M (transmission distance due to different environmental factors and cell phone Bluetooth device vary) 
Charging voltage:DC 5V 
Distortion: 0.6%@1w 
Impedance:40dB 
Frequency response:70Hz-20KHz 
S/N rate:70dB 
Output power:3W 
Built-in power supply:lithium battery 3.7V / 700mAh 
Working time£ºabout 6 hours (50% of the volume is turned) 
Transmitting distance:10M