Compact and lightweight design The wireless fish finder weighs 230 g and measures 68 mm x 68 mm x 50 mm, making it easy to transport and store for all your fishing expeditions. Fish capture assistance This device helps you quickly identify where the fish are swimming by providing critical data such as water depth and temperature at your fingertips. It reduces unnecessary waiting and helps you cast with purpose. Advanced sonar technology Featuring a sonar frequency of 125 kHz with a 90 degree radiation angle, this product delivers reliable performance up to depths of 36 m (120 ft) to help you spot potential catches more consistently. Efficient power usage Enjoy extended use with up to 10 hours of power life on a single charge, supporting daylong fishing trips without worrying about battery life. Use scenarios 1. Shore or bank fishing: quickly determine depth and water temperature before casting to locate productive spots. 2. Boatbased or lake fishing: use the sonar to identify structure and fish activity at moderate depths to plan where to fish. 3. Allday trips: rely on the long battery life to fish for extended periods without frequent recharging.