Lucky Laker Wifi Smart Fishing Sonar is a handy Wifi fishfinder the size of a golf ball in the colour black. Very easy to operate via your smartphone or laptop. The Lucky Laker has a wireless range of 70m and can be used in both fresh and salt water. You can connect this fishfinder to 5 devices and operate one device at a time. It shows the water depth, water temperature, bottom contours, fish location and depth. This fishfinder makes locating fish and finding a nice spot very easy!