Venterior VT-FF001E with Color Screen is a portable and easy to use fish finder for fishing lover. It detects and displays water depth, approximate fish location, fish size, weeds and rocks on seabed. For learning the depth of the lakes that don't have topographical maps and finding where the fish are in lakes, this is the best value for the money. It can be used for boat fishing, ice fishing, shore/pier fishing and night fishing.