• Stream music up to 100 feet away with Bluetooth 4.2. • The 100% waterproof acoustically engineered and sealed speaker enclosure provides a deep base, warm midrange, and clear vocals • Up to ten-hours of unplugged music via the built in rechargeable Lithium lon battery or use the included USB adapter to charge the EcoDrift via your computer, lap top or USB wall jack / hub • The EcoDrift is 100% waterproof, rugged, and the perfect wireless Bluetooth speaker system for listening to your music around the house • The EcoDrift includes EcoConnect that allows 2 ECOXGEAR speakers to connect together for a larger sound (either mono or stereo mode)