Three words: portable. wireless. speakers. Ultra-rugged, water resistant and built for the great outdoors, this palm-sized speaker is designed to withstand any environment, from the beach to the mountainside, while surfing or camping in the mud. The 1400mAh battery will keep your speakers blaring for up to 12 hours of extreme music hearing. Built primarily for connection via Bluetooth, it’s compatible with any device that uses headphones.