Submersible, compact body with large LCD and powerful audio Rugged IPX7 Waterproof Protection (1m depth for 30 mins) Built-in Class D DSC (Digital selective calling) Position request/report function (GPS, NMEA0183 interface required) Clear & Loud Audio Output AquaQuake water/draining feature Handheld microphone with Channel select/Favourite functions Output Power 25 & 1.0 Watt All 55 marine channels with Scan, Priority Scan, Dual-watch & Tri-watch 70 additional marine channels available (Icom/Dealer Programmable) Instant Channel 16 & User call channel selection Low Battery Indicator Integrates with MA-500TR AIS transponder to initiate DSC calls