Ultimate Sound: Boom 3 delivers loud and immersive 360 degree sound with deep and accurate bass, all carefully balanced so you can hear every note. The maximum sound level is 90dBA\nPowered for Adventure: Rechargeable battery stays powered and pumping tunes for 15 hours\nSuper Portable and Durable: Waterproof, Floats and Virtually Indestructible. Boom 3 can be totally submerged in up to 1 meter of water for up to 30 minutes\nAll New Magic Button: Play, Pause, Skip and control any streaming music directly on the bluetooth speaker with one touch of a button\nParty up: Use the Ultimate Ears app to pair 2, 3, 4 and over 150 Boom and Megaboom speakers together for the ultimate sound experience. For Audio Playback: Smartphones, tablets and other devices that support Bluetooth and Bluetooth Smart wireless audio profile [Advanced Audio Distribution Profile (A2DP)]. Actual battery life will vary with use, settings, and environmental conditions