Rockerroller Ro-tourist Waterproof/ Shockproof Bluetooth Speaker. Outdoors/ Shower Water Resistant Wireless Speaker with 2600 Mah Build-in Power Bank The RO-TOURIST is protected from rainfall, water jets, and water splashing. The shock absorbing exterior prepares your RO-TOURIST to DJ in even the most extreme environments Enjoy 3 Watts of audio output per channel with a 70mm passive subwoofer Use the 2600mAh battery to play wireless audio for up to a whole day 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