DS18 MRX100 2 Zone Marine Head Unit w/TFT LCD Screen - 4x50 Watts Max [MRX100]MRX100 2 Zone Marine Head Unit with TFT LCD Screen 4x50 Watts Max DS18s 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