Description:  It Can be used as differential boats, cars, tanks, etc., very suitable for differential series DIY     Suitable for:DifferentialEngineering vehicles, excavators, tanks and remote control boats, special boards for nesting ships It is suitable for making differential turning toys driven by motors on the left and right sides: such as those with left and right tracks, such as tanks, excavators, crawler robots, and remote control boats with two propellers on the left and right, large power long-distance toys like nest boats It is the tank that is most familiar to everyone who turns on the differential, and you can understand how to turn after thinking about it.    Note that it is not suitable for ordinary toy cars:Because the direction motor and drive motor of ordinary toy cars can act independently and do not rely on the differential to turn     Launch board2.2V -4.5V.  Receiving board:3.6V-9V.  Distance: 100 meters and the antenna does not need to be lengthened   Frequency:High frequency 2.4G, need to link multiple sets at the same time, no serial number, stable signal.    Power:High power Integrated motor drive chip on the receiving board MOS tube drive efficiency is high, saving power, not a triode drive Each channel has a maximum current of 2A without burning the board, generally suitable for small and medium motors within 380 models.  Frequency (coding) method:Then press the back and right buttons on the remote control at the same time, then Power on again(Note: be sure to keep pressing the two buttons and then power on), at this time the indicator of the transmitter board flashes quickly and enters the linking mode (if the receiving board has not been powered on for 15 seconds, it will automatically exit), then power on the receiving board, and then you will see the indicators of the receiving board and the remote control Flashing slowly 3 times, it meansPairing is complete. (If multiple sets of sending and receiving codes are paired at the same time, remember that only one set of codes can be paired at a time, and the other must be powered off).    Note:After the linking is successful, there is no need to link the link again for the next use. If the transmitter board or the receiving board is lost, you can re-pair and use it. It is possible to pair multiple sets of receivers with one remote control to control multiple receivers.    The functions of each button are as follows: (One button down, two motors will link to automatically realize differential turning) The button on the left side of the launching board: Both motors will rotate forward when pressed.    Button on the left side of the launching board: Both motors will reverse when pressed.    The right side of the launching board turns to the left button: when pressed, one motor rotates forward and the other motor rotates reversely (tanks and ships turn at differential speeds)No steering gear).    The right side of the launching board turns to the right button: when pressed, one motor reverses the direction and the other motor rotates forward (the tank and the ship turn at a differential speed No steering gear).    You can also turn left and right while moving forward or backward     Reminder:  It is not easy to distinguish the positive and negative of the motor.