Three independent audio zones are available ( three pairs of speakers - zones 1 and 2 powered by internal amplifier), each zone with has independent volume, balance, etc. Connect to an NRX200i remote control (product code: 200259) or compatible MFD via the NMEA 2000 connection. Features • AM/FM receiver with RDS Function • Side-fin cooling -offering greater thermal efficiency • Glass filled composite chassis -Structurally rigid and incredibly lightweight. Improved environmental protection and electrically isolates the chassis for complete reliability. • Class-D Amplifier- High RMS output for louder and clearer audio while drawing less current • Optically Bonded LCD - A widescreen LCD display, optically bonded to improve durability and optimised for daylight • Apple iOS and MTP Android/ Windows Media Playback - Unparalleled support of the world most popular media devices, and the smartest interface for browsing your music library.