Ultimate Ears - HYPERBOOM Portable Wireless Bluetooth Party Speaker with Waterproof, Dustproof and Floatable design - Black

HYPERBOOM rocks a supermassive sound that takes your party into the stratosphere. Believe the hype—it’s got extreme bass and an adaptive EQ that automatically customizes the sound to fill any space. Four input channels let you easily switch music between different devices, while the rechargeable battery rocks the party for up to 24 hours.