Ultimate Ears MEGABOOM 4 Portable Waterproof Bluetooth Speaker, 360-Degree Sound, Thundering Bass, 147ft Range, 20-Hour Battery, Floating Speaker – Blue

PartyUp: Use PartyUp on the Ultimate Ears BOOM app to pair several portable Bluetooth speakers like BOOM, MEGABOOM, EVERBOOM, EPICBOOM, and HYPERBOOM, creating a surround sound experience with Bluetooth speakers
Drop-Proof Wireless Bluetooth Speaker: Enjoy 147 feet (45 meters) of wireless range and 3.28 feet (1 meter) of drop protection with these outdoor speakers
20 Hours of Boom: This Bluetooth speaker portable has a massive 20-hour battery life and the latest cell technology, so you can boom all day long. A Bluetooth outdoor speaker for non-stop music adventures
Virtually Indestructible Bluetooth Waterproof Speaker: A floating waterproof speaker that’s rated IP67 and guaranteed to make a splash at your next pool party
360-Degree Sound: The MEGABOOM 4 Bluetooth portable speaker features a bigger size and a full range driver for powerful 360-degree sound and thundering bass with great balance and clarity