Bose project their mighty wireless Sound Link sound in all directions with the Revolve+ Bluetooth speaker. True 360degree sound ensures everyone in the room or area gets the same great audio. & because it's portable, splash-proof & robustly built you can take the music with you wherever: to the park, by the pool, on the beach. The battery lasts all day & you can even take hands-free calls & voice-interact with Google Now & Siri. Louder & longer lasting than the Revolve, the Revolve+ is a speaker that's equally happy indoors or out, delivering acclaimed Bose sound quality in revolutionary 360degree style. The first thing that strikes you about the Revolve+ is its looks. The speaker grille doesn't even have a seam for true consistency of sound & chic. But this is a tough speaker. It's IPX4 rated water-resistant so it'll happily handle getting caught in a shower in the park, or life by the pool or beach. It's even equipped with soft 'bumpers' top & bottom to allow for slightly rougher handling, like quickly tossing it into your bag. & smooth, soft buttons provide natural, intuitive interaction. Connect your smart device wirelessly by Bluetooth to seamlessly play your top tracks. The Revolve+ can connect to two devices at once & automatically remembers the last eight for quicker pairing. NFC devices link up with simple one-touch connection. Recharging via USB (Universal Serial Bus), its battery lasts up to 16 hours so it'll easily keep going all day & into the night, wherever you take it.