Rechargeable BatteryBattery capacity has 3.7V 4000mAh. The continuous using time of the lithium battery can up to 4-6 hours when the battery is full charged. Specification: Screen size : 4.5-inch IPS LCD display Screen Resolution 480854 Video resolutionMP4 640480/1280720/19201080 Photo resolution JPEG 640480/1280720/19201080 Camera 1200 lines, 160-degree wide-angle, 6 infrared lights Language : Chinese/Japanese/English/Korean/French Storage : TF card Basic function : Photo, video, playback, WIFI , etc Power supply: Input DC5V 1.6A Battery capacity : Polymer battery 3.7V 4000mA Work time :4-6 hours Operating temperature : -1040 Package Including 1× 4.5 inch HD display 1× HD camera+high-power finshing line 15m 1× Monitor holder 1× Fish float 1× Fishing reel. Pls leave a note or send a message if any question. Return We offer 30 days return.We'll do best to solve any problem. Underwater Fishing useThe fish finder for fishing enthusiasts. Water Depth and Tempreture Sensing SystemThe Underwater fishing camera can measure the waters depth and temperature accurately and it can help you to find the best fishs survival temperature, so you can accurately understand the fishs position. The item "Eyoyo 15M Visible Fish Finder 19201080 with Photo Video Function for Snorkeling" is in sale since Wednesday, January 8, 2020. This item is in the category "Sporting Goods\Fishing\Fishfinders". The seller is "elecrow" and is located in Shenzhen. This item can be shipped worldwide.