Wireless Bluetooth Speaker ready for Wherever, Whatever, Whenever. UE ROLL Wireless Bluetooth Speaker is the powerful, pint-sized speaker that brings the noise to hidden beaches, cliff jumps and mountain climbs. It’s big, beautiful, unapologetically awesome sound that’s small enough to take anywhere. 65 ft. Bluetooth wireless range and 9 hr. battery life go as long as you can (Actual wireless range and battery life will vary with use, settings and environmental conditions). Marine-grade bungee cord attaches to you or your bike, backpack, snorkel or whatever. Gets awesome all the time through wireless, over-the-air speaker updates. Works with Apple and Android mobile devices.