Ultimate Ears Boom 3 Portable Waterproof Bluetooth Speaker - Sunset Red (Renewed) 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 Powered for Adventure: Rechargeable battery stays powered and pumping tunes for 15 hours.Add the POWER UP charging dock (sold separately) to charge Ultimate Ears BOOM 3 wirelessly so it’s always ready to go on your next musical adventure Super-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, passing seriously tough durability tests to handle life’s spills and thrills All-New Magic Button: Play, Pause, Skip and control any streaming music directly on the Bluetooth speaker with one touch of a button. Maximum Sound Level- 90dBA. Frequency Range- 90Hertz-20Kilohertz PartyUp: Use the Ultimate Ears app to pair 2, 3, 4 and over 150 BOOM and MEGABOOM speakers together for the ultimate sound experience.Works with any generation of BOOM and MEGABOOM speakers Extreme Performance Fabric:BOOM 3 is covered in shimmering two-tone fabric that’s tough, beautiful and engineered for extreme applications like motorcycle jackets and fire equipment These are FCC regulated products: FCC ID JNZS00170