Rocker Switch Universal Mount BT Control Unit, Built-in Wireless BT Audio Receiver, Marine Grade Construction, Water-Resistant, Weatherproof Design, Connect & Stream Audio from Additional External Devices, Aux (3.5mm) Input, Full-Range Stereo Sound Reproduction, Integrated Power Wiring Harness, Pre-Amp RCA Out to Any OEM/Factory-Made Mono-Block/Full-Range Amplifier, Universal Vehicle Mounting on Rocker Switch Position, Anti-Thump On/Off, Soft Turn On/Off, Overload & Power Protection Circuitry, Great For Cars, Trucks, ATVs, UTV's, 4x4s, Boats, Marine Watercrafts, & PowerSport Vehicles, Rocker Switch Wireless BT Music Streaming:, Simple & Hassle-Free Pairing, Instant Wireless Audio-Streaming Receiver, Works with All of Today's Latest Devices, Smartphones, Tablets, Laptops, Computers, etc., Wireless BT Version: 5.0, Wireless BT Network Name: 'PyleUSA', Wireless Range: Up to 30+ ft, (1) Rocker Switch Wireless BT Control Unit, (1) 3.5 mm Auto Connection Cable, Construction Materials: Silicon + PP, Marine Grade Waterproof Rating: IPX6, Fuse: 2A, RCA Line Out (Pre-Amp): 1 Pair (Left & Right) 2.5Volts, Aux Line Input: Plug 3.5mm, Power Output: DC 12V, Total Unit Dimensions (Lx W x H): 1.10” x 2.01” x 2.87” -inches (Flush Mount)