DS18 HYDRO MRX100 Marine And Powersports Digital Media Receiver 3″ Video TFT LCD Screen, 2 Zones, 4 Volts Output, BT, 4 x 50 Watts MAX The MRX100 is DS18’s NEW all in one marine head unit that does it all! DS18’s MRX100 Marine Head Unit is designed to do it all and then some! The same beautiful compact design, upgraded to be even more powerful and durable to endure the toughest beating any marine, golf-cart, and off-road head unit will go through. The experts at DS18 upgraded this powerful receiver with: higher range Bluetooth connectivity, substantial material changes for extended longevity, and lower operating voltage for power consumption efficiency. The MRX100 also allows classic users to browse over 37 presets radio stations without the need for a device being connected to it