Feature: 1. The operation is simple and clear, easy to use, classic operation and interface, can record waypoints, routes, and tracks. 2. GPS three‑dimensional positioning, automatic calculation of latitude and longitude, and display on the screen, high practicability. 3. Multiple screen functions, assisting navigation operations, one‑key quick point setting, etc. 4. The 4.3‑inch LCD display can provide you with a good visual experience when sailing. 5. Retro classic navigation navigation, support 4 languages, English, Korean, Indonesian/Malaysian, Chinese for your choice. Specification: Item Type: Marine Satellite Navigator Material: Engineering plastic housing+ LCD screenHost Size: Approx. 145x135x68mm/5.7x5.3x2.7in Power Supply: Power: 2W in normal mode (without backlight) Input: DC 12V-24V Working Temperature Range: -15-55℃ Storage Temperature Range: -40-70℃ Performance: Receiver: 12 channels in parallel Search Time: 1 minute in 2D mode (Typical Value): 1.5 minutes in 3D mode Positioning: Approx. 15m/49ft RMS (constant speed state) Speed: 0.4 knots RMS (constant speed state) Dynamic: 90 knots 3G dynamic Interface: NMEA0183 output Waypoints: 500 Route: 20 lines and 30 segments, can be reversed How to Use: Power On And Off: Press the power button to turn on the power, make a beep, and then enter the start welcome interface. The first time the device is turned on, it takes about 90 seconds to determine its position. After that, it usually takes about 12 seconds. Turn off the device, press and hold the power button until the screen goes black (about three seconds). The remaining time is displayed on the screen until the power is turned off.. Package List: 1 x Satellite Navigator Host 1 x 10 Meters Long GPS Antenna 1 x Power Cord1 x Mounting Bracket2 x Quick Installation Guide2 x Spare Fuse4 x Mounting Screw2 x Bracket Fixing Knob