Meets JIS8 Submersible standards Class D DSC (Digital Selective Calling) DSC Position Send, Request, and Test Call features Large, easy to read Full Dot Matrix display Rubber grip mic Shorter Chassis Design allows for more versatile installation All USA, Canadian, and International Marine Channels Rugged speaker microphone with Channel, Up/Down, Scan and 16/9 Keys S.A.M.E Emergency/Weather alert 1/25 Watt Transmit power DCS (Digital Selective Calling Easy-to-Use Intuitive Menus in Full Dot Matrix Display Large backlit display for enhanced night vision Programmable channel scan means you never miss a call 3 Year warranty protection 10 weather channels Connectors: NMEA0183 Input and Output Operating Temperature Range: -20 degrees C to 50 degres C Frequency range: 156 to 164 mHz External speaker capable (40 ohm) Size: 6.25" (W) x 2.5" (H) x 6.0" (D) Weight: 2 lbs 3 oz Hailer/Intercom NONE Remote Mic Capable NONE Scrambler Capable NONE