The portable fish finder has an updated 2.4-inch TFT color LCD screen (clear display) that can detect and display underwater profile, water depth, water temperature and fish size (large/medium/small) and fish depth. It has two user modes: sensor/simulation. Try everything in simulation mode and fish sensor mode. The portable device gives you 26 feet of wired operating distance and 328 feet of depth detection. Kayak fish finder Hasa 45 beam angle, detection frequency is 200Khz. USB cable charging included. The fish depth meter can work continuously for about 5 hours when fully charged. The display brightness can be adjusted. Easily read data at night or in the sun. Multiple function settings: Lucky Portable Fish Finder has updated the underwater profile display (3 displays). You can choose, clearer, more professional). In addition, you can also set sensitivity, screen brightness, depth range, zoom, depth alarm, fishing with fish depth detector, such as ice fishing, river fishing, sea fishing, coastal fishing, kayak fishing, etc.