All the features of the A70 plus a 500 Watt HD Digital fishfinder built in. Enjoy 3D and satellite photo map navigation using optional Navionics Platinum charts. Superior fish detection and bottom discrimination using Raymarine's unmatched HD Digital sonar technology. HD Digital sonar technology instantly adapts to changing seabed and water conditions providing fully automatic " hands off" operation. Includes a dual frequency 200//50 kHz transom mount transducer with depth, speed and water temperature sensors. Built-in high sensitivity 12 channel GPS receiver with WAAS. Sunlight viewable high resolution VGA (640 x 480) for pixel perfect chart detail. Fully waterproof enclosure. Tilt swivel mount features cable management and quick release for easy removal from the boat. SIRIUS marine weather and audio compatible using the optional SR50 receiver. AIS compatible. Powerful chartplotting with super fast screen redraws and support for Navionics Gold, Platinum and HotMaps charts on Compact Flash.