Crisp, Balanced Sound and unmatched bass for a Bluetooth speaker its size, plays loud and clear outdoors for beach days or camping trips Built-in mic for speakerphone to take clear conference or personal calls out loud with a wireless range of approximately 30 feet. Waterproof Speaker From the Inside Out (Ipx7 Rating), With Soft, Rugged Exterior, Resists Dents, Cracks and Scratches Easily Portable With a Tear Resistant Strap to Bring It Wherever You Go, Strap to Your Backpack, Cooler or Handlebars Up to 6 Hours of play time from a rechargeable battery and wireless Bluetooth pairing.