BOSS Audio MRBT200 - Bluetooth, IPX4 Rated, Water Resistant, Portable Marine Grade Speaker System Bluetooth Audio Streaming - Stream and Control Your Favorite Music APPs Bluetooth Hands Free Calling - Built-in Microphone Lets you Make and Receive Calls Water Resistant Construction, Auto Pairing, NFC (Near Field Communication) Track Control, Volume Control 3.5 mm Aux-In (Aux Cable Included), Up to 8 hours of Playback Li-ion Rechargeable Battery, Bluetooth Signal Range: Up to 33 ft (10 m) Carabineer Clip Included 3 Year Platinum Online Dealer Warranty