Waterproof Bluetooth Speaker

1,Bluetooth version:3.0                   
2,Active power: 3W
3,Signal&noise ratio: ≥82dB
4,Impedance: 4 OHM(Ω) 
5,Built in battery: 300mAh
6,Function: Bluetooth,Hands free                                                          
7,Size: 78x65x63mm