1、Portable and Lightweight: This fish finder is stylish and lightweight in design, compact in size, perfect for fishing 2、Multiple Function Display: Fish finder can detect fish size icon, including water temperature, water depth, fish size, river bed 3、Multi Language Menu Settings: Including 23 types. Fish finder can be used for offshore fishing, kayak fishing, ice fishing, lake fishing, sea fishing, river fishing and other fishing methods 4、Wireless Sonar: Wireless sonar sensor supports 40 meters underwater detection, can cover 90 degrees detection angle, and the signal receiving distance is 60 meters 5、UI Mode: Sonar mode, sonar emits a continuous stream of frequencies ranging from low to high, anglers can clearly see the fish even if they are close to the bottom or in a dense school of fish. Scene mode is to give you a virtual view of the fish underwater, to experience the underwater scene Item Type: Fish Finder Material: ABS Weight: Approx. 329g / 11.6oz Battery Type: Lithium Polymer Battery Battery Capacity: 1000mah (Shipped with Built in Battery) Maximum Detection Depth: 40m / 131.2ft Depth Range Upper Limit: 0.6m / 2ft Sonar Frequency: 125khz Detection Angle: 90 Degrees Operating Temperature: -20℃ to 70℃ Maximum Bluetooth Receiving Distance: 60m / 196.9ft Uses: 1, Detection of Water Depth and Bottom, Can Quickly Find the Bottom, to Understand the Bottom Structure 2, Detect the Depth and Size of Fish, Nice Choice of Fishing Gear 3, Measuring Water Temperature, Through the Understanding of Fishing Waters, Increase the Fun of Fishing Scene: River Fishing, Sea Fishing, Pond Fishing, Reservoir Fishing 1 x Fish Finder 1 x Connecting Wire 1 x Storage Bag 1 x Storage Box 1 x Instruction Book