Extreme Outdoor Sound 20W of raw audio power turbocharged by BassUpTM technology. 12-Hour Playtime Built-in rechargeable Li-on battery ensures 12 hours of playtime. Everything Proof Waterproof, dustproof, shockproof. Tough enough to take wherever you want. Customizable EQ Tailor the sound for any situation. Soundcore App Control Icon and tailor its sound via your phone. Wireless Stereo Pairing Connect 2 speakers via a single device for seamless stereo sound or double the volume. USB-C The latest USB technology for wider compatibility and easy recharging.