The GX1600 features an ultra thin, compact rear case, only 3.5" deep, and meets the Class D DSC regulations. Additional features include oversized full dot matrix backlit display, user selectable Programmable Scan, Dual Watch, Ch16 Priority Scan, user changeable channel names, NOAA weather with alert, dedicated preset channel, backlit keypad, dedicated CH 16/9 keys and 3 programmable soft keys. The microphone also has dedicated 16/9 and H/L keys, channel selection keys and uses ClearVoice noise reduction to reduce wind and engine noise. A unique feature is the ability to "poll" (request and send) the GPS location of another vessel and show that vessel's position on the radio's display. 3-year waterproof warranty. 5.91"(W) x 3.35"(H) x 3.54"(D).