Dolphin Ipx5 Bluetooth Speaker SPB-8X. Chose In One Or Three Colors: Black, Blue, Red. Features: IPX5 Waterprof Rating, Phone holder, Hands free call function. WaveSync™ Technology: Connect two speakers using WaveSync™ technology. Accessories: USB Charging Cable. Drivers: Dual 2″ drivers with passive radiators, Audio Inputs: Bluetooth, USB Drive Mp3 Player, Micro SD Card Mp3 Player, 3.5mm Auxiliary, Battery: 1200 mAh Lithium Battery, 8 hours play time at 50% volume, Cabinet: Rubber coated, Portability: Flexible grab handle, Music Power, 10W RMS Watts.