• External GPS receiver
• Plug-n-play to MR F57 & MR F77 GPS VHF marine radios
• Connects easily to any competitor's radio or chart plotter with included cable
• Waterproof (IPX6)
• 56 channels
• Simple installation

UPC : 028377313752
Shipping Dimensions : 6.30in X 5.90in X 1.20in
Estimated Shipping Weight : 0.65