Built-in high quality rechargeable polymer battery
Full of charge can lasts up to 3 hours of continuous use.
Built-in On/Off switch Button can save battery life while not in use.
Can be Charged in PC with USB cable, or by a charger(not included).
Fits for: Cell Phone with 3.5mm audio plug, iPhone, iPod, Laptop MP3/MP4 etc
Frequency response: 100Hz-20 KHz
Output power: 1.2W
Interface: 3.5mm standard audio jack
Charging time: at least 2 hours
Battery Voltage: 3.7V Li-on
Color: As the picture
Size: approx 85x 53mm (H*D)
1 x Mini Speaker
1 x USB Cable