Wireless Portable Fish Finder Wireless portable design for convenience and hands fishing. No need to constantly watch the float. Equipped with a frequency sonar system and an LCD screen to detect fish and monitor water depth and conditions in real time. Depth alarm and fish detection. Provides water depth readings, a fish depth scale, and water temperature to help you locate productive spots and improve fishing success. Night display for visible readings. White LED backlight keeps the screen clear in low light and at night. Practical and durable design. Made from ABS material, lightweight and easy to carry, with multiple functions to support versatile use for any angler. Use scenarios Freshwater lake or pond fishing: scan depth contours and spot fish through the sonar to choose productive areas. Coastal or near shore fishing: monitor depth changes and water temperature to identify favorable fishing zones. Night fishing trips: rely on the backlit display for clear readings after dark without sacrificing readability.