IP67 Certified dustproof & waterproof Shock resistant, submersible, & floats Up to 7 hours of play time Hands-free speakerphone mic EcoConnect wireless pairing Music & phone controls 5W speaker Universal screw mount Built-in magnetic mount Built-in 3.5mm jack 5V USB Input 1.0 A Aux In (3.5mm) Power 3.7V, 500mAh Lithium Battery Over 7 hours playtime Fully recharges in approx. 2.5 hours What's in the box x 2 Speakers x 2 USB Charging Cables x 2 Carabiners and Nylon Lanyards (small)