Big, bold, beautiful sound: Sound so loud you will have to shout to be heard; 15 percent louder than the original UE ROLLStretchy, attachable marine-grade bungee: Strap the speaker to your bike, backpack, kayak or wherever else you want to take your musicWaterproof: You can submerge UE ROLL 2 in water and it’ll be totally cool (Waterproof for up to 30 minutes and a depth of 1 meter)Lighter than a can of soda: Ultra-portable and so light you will forget you are even carrying it.Go farther: 100 ft. Bluetooth wireless range and 9 hr. rechargeable battery life go as long as you can (Actual wireless range and battery life will vary with use)Brand NameUltimate EarsSeriesUE Roll 2Item model number984-000661Item Weight11.7 ouncesProduct Dimensions5.3 x 1.6 x 5.3 inchesItem Dimensions L x W x H5.3 x 1.6 x 5.3 inchesColorSugarplumPower SourceBatteryBatteries1 Nonstandard Battery batteries required. (included)