Masione&trade; MS-285 Outdoor Sport NFC Waterproof Shockproof Dust-proof Portable Bluetooth 4.0 Speaker, 10 Watt, 2000 mAh Li-ion battery, Deep Bass Booster, Built In Mic, Up to 12 Hours Playtime for Iphone, iPod, Samsung Galaxy, Nexus, iPad, HTC, Blackberry, Macbook, Androids, Smartphones, Tablet, Pandora APP (Orange) Waterproof, Dustproof, Anti-scratch, Shockproof,Rechargeable, High temperature Resistant,suitable for both indoor and outdoor exercise Bluetooth 4.0,NFC wireless connection (Near Field Communication) Two 40mm, 10W (total) drivers 10W deliver the rich BASS and POWERFUL sound quality that you crave Li-ion rechargeable(2000mAh) battery Enjoy up to 12 hours of uninterrupted playtime with a single charge(charging time:3 hours) Doubles as a Shower Speaker,Built-in Microphone as hand-free speakerphone for Calls;Metal Hook Loop for Easy Attachment to Chain, Wire, Karabiner, Clip, etc