The full featured wireless speaker made for riders: dust and immersion-resistant, "oceanproof" and featuring a built in FM radio, Bluetooth, or "line in" connection. The perfect companion for hitting the waves and the slopes, training sessions, or just kicking back and relaxing. Great for surfing, stand-up paddleboarding, snowboarding, and much more! Single-unit IP67-certified Bluetooth speaker with USB charging cable, wrist strap, warranty certificate, and user manual, shock absorbing rubber bumpers, smartphone charging power bank,. Battery life: approximately 10hrs Bluetooth mode/ 18hrs. FM mode. Immersion-resistant:able to withstand being submerged in 3.3 feet/1 meter of water for 30 minutes! Dust, sand, and snow resistant.