1DIN head units with a built-in monitor, receiver and a wide range of modern features, such as SD Card Redaer, USB Interface and TV Tuner. Prology Multimedia Head-units feature a LCD monitor, high-quality digital FM/AM PLL tuner, multichannel amplifiers with high output power, DVD/CD/MP3 changer controller and developed communication system. If building an audio/video system with extraordinary flexibility and unlimited opportunities for selection of the source of your video programs is your objective, choose a Prology multimedia unit for the heart of your mobile multimedia system.