ULTIMATE EARS MINIROLL Ultra-Portable Waterproof Bluetooth Speaker, Big Bass, IP67 Dustproof, 131 ft (40 m) Range - Gentle Black

Meet MINIROLL, the durable, compact speaker that gives you big sound—anywhere. A hookable strap lets you take your music along for the ride. Delivering surprisingly big bass and crisp sound in one portable package, with a whopping 12 hours of playtime on one charge. The rugged IP67 rating lets you submerge MINIROLL in 1 m of water for 30 minutes. It’s dust-proof, and survives drops of up to 4 feet, or 1.2 meters. And with Auracast, you can pair several MINIROLL speakers to get extra loud. 131 feet, or 40 meters, of wireless range gives you total freedom to roam.