Anker SoundCore Sport Waterproof Bluetooth Speaker - Black Brand New, Factory Sealed Industry-High Waterproof Rating IPX7 waterproof rating means SoundCore Sport can handle immersion in up to one meter of water for up to 30 minutes, and even float after taking a plunge.* With high dust, sand and water resistance, it?s the perfect companion for a day outdoors. High-Fidelity Sound Crisp, crystal-clear sound quality and robust bass are realized through a 3W audio driver and passive subwoofer. Anti-clipping technology ensures distortion-free music. Listen to your music as it?s meant to be heard. Flexibility SoundCore Sport keeps the music playing for up to 10 hours on a single charge. ** An outstanding connection range of up to 33 feet and a built-in microphone for handsfree calling mean more flexibility for you