Antimicrobial protection kills 99.9% of bacteria, an industry and Altec Lansing first! 11 LED light modes that beat, strobe and pulse to the music. 20-hour battery life, 100 ft wireless range, and “Just Ask" feature. True Wireless Pairing which lets you wirelessly paid 2 Hydra units for a party/surround sound experience. This speaker is IP67 Everything proof (waterproof, shockproof, snowproof) and floats in water. Included carabineer clip allows you to clip your speaker to your backpack, briefcase, pants pocket and more.