Turn up the volume on your outdoor escapades with the Ultimate Ears EVERBOOM portable Bluetooth speaker. It's balanced, 360-degree sound, booming bass, and customizable EQ settings ensure a personalized audio experience like no other. Enjoy up to 20 hours of battery life on a single charge and amplify the fun by pairing it with other Ultimate Ears speakers using Party Up. | Ultimate Ears EVERBOOM Waterproof Bluetooth Wireless Speaker - Black