​This is a bluetooth speaker with 10W output. Dual passive radiators enhance the deep bass. CSR 4.1 chipset make signal more stably.
Its water-resistance level is IPX5

*Bluetooth Version: 4.0+EDR
*Rated Power: 2×5W; 
*Driver Unit: 45mm×2   
*Frequency Response: 120Hz~20kHz
*Receiving Range: ≥10M (No blocking)
*Power Supply: DC 5V
*Battery Type: Li-ion (built-in) 3.7V, 2600mAh
*Operating Time: ≥8Hrs; 
*Charging Time: 3~4Hrs