1、1. Wireless probe: The fish finder uses sonar to detect the depth of the water and the position of the fish. The sonar frequency is 125 kHz. The detectable area is 105 degrees below the sonar radiation angle. Greatly improve the detection angle. Maximum wireless link distance: 100 meters/328 feet (under obstacle-free environment), sonar ball is light and compact, you no longer need long and heavy cables. 2、2. Upgraded air pressure test: The product adds an air pressure plate to the traditional fish finder, which can be judged by the weather whether it is suitable for fishing on the day. About one kilopascal is the more suitable air pressure for fishing. In addition, the size of the fish to choose from has been added to make it easier to find your aimed fish school. 3、3. Can show the approximate fish location and water depth. The sonar sensor can be installed on the hull of a kayak or small boat so that you can understand changes in water depth as you pass by. The water depth detection range is between 2.4 feet (0.8 meters) and 197 feet (60 meters). 4、4. Color LCD screen: color backlight, you can clearly see the display screen in the sun or in the dark. In addition to the depth of the fish and the depth of the water, the handheld fish finder will also display short and tall weeds, sand, and rocks at the bottom, and a split-screen function (partial zoom) is added. At the same time, the measurement unit of depth can be switched freely by feet or meters. 5、5. Portable handheld: The size of the fish finder is small, which is convenient for one-handed control. Throw the wireless probe into the water and turn on the display to control the direction. When the fish or school of fish pass by, you can clearly see it. You can fish in clear water or muddy water. 6、6. Gift for fishing enthusiasts: Whether in freshwater or in seawater, you can easily use the depth finder for boat fishing, ice fishing, and sea fishing. If you are looking for gifts for your husband, father, friends, or any angler, look no further, fish finder is now better than ever. Host parameters: Material: ABS + electronic components Color: black and red Product size: 13*8cm Display size: 5.7*4.3cm Weight: about 150g Power supply: USB charging Display Type: Color Sunshine LCD Display size: 2.8 inches Language: Chinese/English/French/Russian Unit of measurement: m/ft Charging voltage: DC5V Working temperature: -10~60℃ Storage temperature: -20~70℃ 1*Display Host 1*Wireless Probe 1*Host Charging Cable 1*Probe Charging Cable 2*Transfer Screw 1*Anti-Lost Lanyard 1*Instruction 1*Quick Guide 1*Storage Box