Radio control Sonar Fishing Boat Overall size: 675*200*210 mm Weight: 4.25 Kgs (including storage battery and kentledge) 1.2 Kgs (excluding storage battery and kentledge) Power supply: 12v/4.3A sealed storage battery being able to continuously work over 2 hours after refreshing. Speed: 1 meter/second Controlling distance: 300-500 meters on water Electromagnet: working voltage 12V Working current 1.6Ah Connecting time: 1 second Driven groupware: twin 540 motors, gear chains transmission, built-in screw propeller Main actions: sailing forward, turning left or right, hooking, baiting and direction range lights Hopper load: 500 grams Transmitter: Adopting address code Power supply: 9v layerbuild cells or 9v layer storage battery Size: 150mm*45mm*24mm Antenna length: 258 mm Automatic hook releasing system Two way sonar fish detecting system Light fish attracting system Ultrasonic detection.