1. The operation is simple and clear, easy to use, classic operation and interface, can record waypoints, routes, and tracks.     2. GPS three& 8209;dimensional positioning, automatic calculation of latitude and longitude, and display on the screen, high practicability.     3. Multiple screen functions, assisting navigation operations, one& 8209;key quick point setting, etc.     4. The 4.3& 8209;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 screen     Host 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& 8451;     Storage Temperature Range: -40-70& 8451;     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 Cord     1 x Mounting Bracket     2 x Quick Installation Guide     2 x Spare Fuse     4 x Mounting Screw     2 x Bracket Fixing Knob