Features: 4.3 inch high-resolution LCD monitor for easy viewing; attached visor for sunlight use. 1200TVL high-definition camera with 140 wide angle captures clear images. 8pcs infrared LEDs with adjustable brightness for good visibility in the dark. Super strong and waterproof cable withstands bearing up to 30kg. Cable length: 20m/30m optional. Built-in 4400mAh rechargeable lithium battery with long battery life. Can also work with a 5V external power source (not included). With a clamp that helps mount the monitor on your fishing rod for convenient viewing while fishing. Suitable for boat/ice/river/sea/reservoir fishing.