This application provides a clear display interface, simple and easy to understand operability and functionality, providing users with a high-quality user experience. Introduction to Dolphin Fishing Sonar Features: 1. Detecting water temperature, depth, and underwater terrain; 2. Detect the active status of underwater fish schools, such as size, location, and movement trajectory; 3. Can be loaded onto nesting boats or drones4. Support functional scenarios such as shore fishing, ice fishing, and boat fishing; 4. Support functional scenarios such as shore fishing, ice fishing, boat fishing, etc.