Rechargeable Portable Fish Finder with Wireless SensorMake Catching Fish More Fun and Easily While fishing can be fun and relaxing, catching fish can sometimes be a challenge. This portable fish finder will help you find fish more easily with less time! You can just bring your bait down the water, wait and enjoy without spending the entire day searching for fish. Can detect water up to 100m, and beam angle of 45degree in 200khz Screen displays underwater contour, water depth, water temperature, and fish