Various Function: The portable fish finder contains the feature of water temperature display, bottom contour display, ice fishing display mode, sensitivity adjustment, backlight mode and so on. The fishfinders are also great fishing gear and fishing gifts for men!. Easy to Use: You can use the float fishing sonar sensor of transducer fish finder or fix to the boat hull for detecting. The shore fish finder is also available both in freshwater and saltwater. No matter you are a beginner or a professional angler, the boat depth finder is easy to operate. Potable Fish Finder: The dimension of the kayak fish finder is 5.31 x 2.76 x 1.1 inches, and it fits your hand perfectly. The portable fish finder has anti-slip design and is convenient to put in the backpack. The handheld fishing sonar is very easy to operate as well. High Quality Imaging: The fish depth finder has three color modes to show the bottom contour, making the imagine much clearer. In addition, the display depth finder has transducer mode and simulation mode, so you can try any mode that you like. Accurate Data Display: The accurate real time data will be showed on the the 2.4inch TFT color LCD screen kayak fish finder, including fish position, depth of water. We also divide the fish size into large, middle, and small size as icon showing on the screen.