WIRELESS SONAR 100M WITH SONAR SENSOR FOR FISHING BOATS FUNCTIONS: On a specific screen you can get all the data you need, including sea depth, fish situation and so on Designed with backlight for clear nighttime display Equipped with a leash for comfortable use Application to lake, river, sea and other fishing areas The main device is powered by 4 AAA batteries (battery not included) The sensor can be charged with a charging cable Perfect tool for outdoor fishing - Inner mesh panties Color: Black Material: ABS Backlight: white LED backlight Sonar Frequency: 125 kHz Wireless power consumption: 0,1 W Depth Range: 0.6-45m Radio range: 100m Sonar beam angle: 90 degrees RF: 433,92 MHz Operating temperature: -2070 The package includes: 1 * Wireless sonar (built-in 300mAh battery) 1 * receiving host (excluding 4 * AAA batteries) 1 * USB charging cable 1 * Antenna 1 * leash 1 * User Manual in English 1 * colorful box