2.4G 4CH remote control and receiver circuit board for diy car tank airplane 50 meter 5A current SNRM17

reach distance: open area 50 meter
the quantity of motor control:2 motor
what motor it can use: 130,260,(high power motor may burn the board)
receiver board:
receiver board size:4.1*5.3cm
input voltage:4-7v
max current input:5A
remote control:
we use AA*2 battery for remote control (not include)
how to use:
  1. both switch off receiver and remote control
  2. switch on receiver and remote control, get close, when the light on remote control stop blinking, that means them in a pair. if not, please try again,