HD Chinese wireless and wired fish finder $ 75.75 Display: 2.4 inches TFT color LCD Backlight: On/Off white LED Depth capability: 328 feet (100m) Sonar coverage: 45 degree beam angle in 200Khz Power supply: 3.7V lithium battery Waterproof design: Level 4 (splash-proof) Water depth, water temperature, fish position, bottom contour can be continuously received from the water
