Extended Playtime: Built-in Li-Ion rechargeable battery powers up to 20 hours of playtime at 50% volume. Recharge in 3-4 hours with the included micro USB cable. Portable and Versatile: Enjoy high definition stereo sound with impressive volume whether you're lounging, partying, camping, hiking or biking. Water-resistant Protection: With IPX5 Water-resistant, the DOSS Soundbox Touch speaker can work against water and other liquids gentle splash. A good choice for summer days, poolside or beach parties, keep the music on your way. Capacitive Touch Control: Easy-to-use touch controls allow you to amplify the mood and energy of the party. Change tracks, volume and pair effortlessly with just a simple touch. Superior Sound Quality: Enjoy your music in 12W full-bodied stereo realized through dual high-performance drivers and unique enhanced bass.