Spec.:
1.Metal+Plastic+ soft TPU case, Rugged design, shockproof & dustproof
2.Waterproof Bluetooth speaker for outdoor use ,Water resistant: IPX4
3.Build in 1600mAh Li-Polymer Battery , play music all day long
4.Built-in MIC, with handfree function for phone call
5.With viberation film, bass enhanced
6.Wireless: Bluetooth 4.1
7.Audio Input: Wireless + 3.5mm AUX in + TF function
8.Working distance: Up to 15 M
9.Working time: Up to 5 hours (play music)  
10. Output power: 5W*2 (RMS)
11. Frequency Response:  20Hz~18KHz
12.CE/FCC/ROHS/BQB