Ultimate Ears MEGABOOM 4 Portable Waterproof Bluetooth Speaker With Powerful 360 Degree Sound and Thundering Bass, Floating 20 Hour Battery 45 m (147 ft) Range Black

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