Features: High sonar frequency allows this sonar transmitter to accurately distinguish fish from other foreign objects such as stones. The water depth, water temperature, fish position, and bottom contour can be obtained from the water. LED colorful display, the detailed information collected from the sensor, includes water temperature, fish icons, sensor power indicator and depth range, so you can read in the dark. Depth range detection is 2.6 feet (0.8 meters) to 164 feet (50 meters) under sona transducer fishing. It can be used for shore fishing, kayak fishing, ice fishing, lake fishing, sea fishing, and more. Specifications: Material: Plastic Host Display size: 3.5 inches Display resolution: 480*320 Language: Chinese/English/Russian Unit of measurement: M/Ft, ℃/°F Charging voltage: DC5V Type-C Working temperature: -4~140°F Storage temperature: -4~158°F Size: 6.2*3.9*1.57in Weight: 270g/ 9.5oz Wireless probe Detection depth range: 0.8-50m/ 2.6-164 Ft Sonar frequency: 125 KHz Sonar radiation angle: 105° Charging voltage: DC5V Working temperature: -4~140°F Storage temperature: .4~158°F Charging time: 2 hours Dimensions: 2.8*2.2inch Weight: 80g/ 2.8oz Package List: 1 * host 1 * sonar sensor 1 * manual 1 * USB charging cable for host 1 * USB charging cable for sonar sensor 1 * lanyard 1 * mounting bracket