The Mini LifeJacket Jolt is the Bluetooth speaker that puts out impressive audio despite it's small size. The IP67 waterproof rated design lets you bring your music with you wherever you go! Connect multiple Mini LifeJacket Jolt speakers together for double the sound. Up to 16 hours of battery plus a built-in smartphone charger lets you stay connected and the music jamming for hours. Ask questions, get answers and organize your day with "Just Ask", a feature that allows you to access your Siri and Google voice assistant via Bluetooth on your smartphone.