model: BT-MG1

　　mini blue-tooth speaker

　　USB charge input voltage: 5V (500MA current)

　　charge time: about 2.5 hours

　　driver unit: 40mm, Neo. 16mm, 4 ohms, 3.5W

　　frequency response: 70 Hz - 20K Hz

　　sensitivity: 1K(85 dB)

　　li-ion battery: 3.7V/280MA capacitor

　　play time: 2.5 hours

　　distortion: less than 7%

　　s/n ratio: 90 Hz - 20K Hz/65 dB

　　Bluetooth V4.1

　　Transmission range: 10 meters