Features: [Astonishingly Loud, Surprisingly Small] Don't let its size fool you. This pint-sized enclosure is packed with more technology than meets the eye. A highly efficient transducer, dual-passive radiators, an omni-directional acoustic deflector, all of which simply means you'll get lifelike sound and real-life goosebumps. [Packed with Power] A portable BT speaker needs impressive battery life. This one delivers. The rechargeable lithium-ion battery plays up to 12 hoursfor full-day listening. Sure, some other speakers may play longer, but not without compromising the deep, powerful bass you'll get from ours. [Grab and Go] We made this speaker touchable, easy to grab and easy to operateright down to the soft, smooth buttons that ensure every interaction feels natural. [Water Resistant] SoundLink Revolve's water-resistant design means you can use it more places without worrying. With extensive testing and an IPX4 rating, we've ensured your speaker will long outlast an accidental showering of water. [Bumpers for Bumping] All of us are not perfect. And with this speaker, we don't need to be. No worries if you knock it over, toss it in your bag or set it down a little harder than you meant to. Soft materials let you bump without worry.