Merkury Innovations Xplorer 5W Rugged Wireless Bluetooth Speaker. Built-in Speakerphone, Playback & Volume Controls, 6 Hour Battery - Green - MI-SPB3M-300 All Terrain IPX4 Rated, Powerful Sound, Rechargeable Shock-Absorbing Casing On Board Controls With Built-In Speakerphone Weatherproof Ports Cover 1 Year Manufacturer's Warranty