BRAVEN BRV-1 Portable Wireless Bluetooth Speaker [12 Hours][Waterproof] Built-In 1400 mAh Power Bank Charger - Gray/Cyan The BRV-1 is protected from rainfall, water jets, and water splashing. It can be immersed 1m for up to 30 minutes Enjoy 3 Watts of audio output per channel with a 70mm passive subwoofer Use the 1400mAh battery to play wireless audio for up to 12 hours The shock absorbing exterior prepares your BRV-1 to DJ in even the most extreme environments Plug your mobile device's charging cable into the speaker's USB port and get an extra boost of power when you're away from home Rugged, water resistant, and built for the outdoors protected from rainfall, water jets, and water splashing Enjoy 3 watts of audio output per channel