... Alloy raw material; 3. 3.5mm Audio jack; 4. Support Bluetooth; 5. USB access to PC/mobile phone/laptop, etc; ... 6. Built-in Lithium battery, 3.7V, 800mAh; 7. 10W, DC 5.0V output power; 8. Playtime: 2-3 hours ... Li-thium battery, USB cable, DC 5V adaptor. 10. Bluetooth test distance: Samsung--9 meters, Nokia--8 meters, HTC--6 ... G/G.W: 30/32kgCarton size:51.5*41*26cm bluetooth vibration speaker