JBL’s Xtreme 3 features a six-driver audio system, unique design, and plenty of helpful extras like multi-speaker pairing. The waterproof Bluetooth speakers we’re recommending run on battery power, and can last at least 12 hours on a single charge. JBL’s most impressive speaker is its most impressive model to date, combining excellent audio hardware with an ultra-durable design. Sony’s SRS-XP500 can be completely submerged underwater for up to 30 minutes and emerge ready for the next track on your playlist. Braven BRV-Mini and Altec Lansing Mix 2.0 are the best portable Bluetooth Bluetooth speakers to go on vacation with friends or on a tropical vacation in the U.S. . . .