Bluetooth Marine Receiver Adapter Waterproof by HomeSpot Stereo Head Units for Marine Yacht, Boats Vehicles Cars, Motorcycles, ATV, Spa (Built-in with Ground Noise Isolator) Water Resistant design with IP65 standard for Construction and Engineered for marine environment 10 Meter (33 Feet) Operating Range stream your favorite audio tracks seamlessly Stream audio from your smartphone to connect with marine amplifier or spa audio system Bluetooth Profile: A2DP, Bluetooth Version: V4.0 Class 2 Package contents: 1 x Bluetooth Dongle, 1 x 3M Adhesive tape, 2 x Screws, 1 x Instruction Manual