- Versatile Entertainment Options: Connect your MP3 players, smartphones, or USB flash drives (up to 32 GB) via the USB 2.0 port and 3.5 mm auxiliary input. Enjoy your favorite music, news, and traffic updates with 18 FM and 12 AM station memories. - Marine-Grade Waterproof Design: Built to endure harsh marine conditions, this Bluetooth marine radio features IPX5 waterproofing and UV coatings to resist moisture and saltwater. Its standard speedometer gauge design ensures compatibility with boats, yachts, motorcycles, cars, ATVs, UTVs, SUVs, RVs, campers, and trucks. Cut-out dimensions are 7.3 cm (diameter) x 7.2 cm (depth). - Seamless Bluetooth Streaming: Enjoy wireless music streaming through Bluetooth 5.0 technology. Easily connect smartphones, tablets, and other devices for a stable audio experience. The power-off memory feature resumes playback automatically after power loss. - Superior Sound Quality: Experience lossless audio with RCA subwoofer output and 4 x 50 W amplifier output. Customize your listening with adjustable bass, treble, balance, fader, and preset equalizer settings to match your preferred music style. - Practical Applications: Ideal for marine adventures, outdoor activities, and road trips, this marine stereo enhances your audio experience whether you're cruising on a boat, riding a motorcycle, or enjoying a weekend in an RV. - Specifications: Operating voltage: DC 12V; Maximum output power: 4 x 50W.