Features:
Built-in 4000mAh rechargable Li battery, ultra long playing, up to 12 hours music time.
Fashion simple design, convenient to carry.
Built-in microphone enables you to answer a handsfree call.
Convenient buttons for volume adjustment, music and hands-free call control.
Offers a wire-less connection range of 10 meters (33 feet).
Charged by USB port, plug and play, dispel the trouble of using the batterys. 
Superb stereo sound quality and excellent bass.
 
Specifications:
Model: HS-BT168
BT Version: JL4.2
Color: Black, White, Silver, Coffee(Optional)
Material: ABS+cloth mesh
Transmission Distance: 10M
Speaker powers: 10W*2
Playing Time: 10-12H
Built-in batterys: 1*10V 4000mAh lithium batterys
Operation Frequency: 60Hz-18KHz
Item size: 420*70*60mm/16.54*2.48*2.36in
Package size: 450*90*80mm/17.72*3.54*3.15in
Package weight: 1200g/2.65lb
 
Package List:
1*Speaker
1*USB charging-cable
1*Audio cable
1*User manual