Specification: Item Type: 4.3in Fish Finder Screen Material: ABS, IPS Colour: Black Battery Type: Built in 5000mAh Lithium Battery (Included) Camera Signal Input: CVBS Size: 4.3in LCD Screen: IPS Full Viewing Angle Screen Resolution: 800 x 480 Brightness: 2000cd Function: Adjust Focal Length, Hue, Brightness, Contrast, Etc. Video Input Interface: Approx. 3.5mm / 0.14in Scope of Application: Fish Finder Display, Support 3.5mm Camera Interface Package List: 1 x 4.3in FishFinderScreen 1 x Display Card Holder 1 x Headphone Video Plug 1 x Data Line 1 x User Manual Note: 1.Ship with Inbuilt Battery2.The product is just a display, does not include a camera, the camera needs to be purchased separately by the customer.3.There is a main power switch on the side, the buttons on the front are only used to control the screen. So when you are not using the product, you must turn off the main power switch, otherwise it will continue to consume power.