Red wire V+ positive power supply
Black wire V- negative power supply
Blue and Yellow for Motor 1, B and F line
Green and White wire for Motor 2, L and R line
What mean for "8 buttons"?
each two button have same function.
Can control two small motor go and back, it can use on RC tank , car etc.
Can control two motor, one for go and back, one for direction
Good for RC car, left rocker control forward and back, right rocker control left and right.
Remote control distance, in the case of adequate electricity, no interference, the correct access to the antenna after about 10 meters