8 Buttons 27MHZ 4CH Remote Control with Receiver Board Antenna For DIY SN-RM9

Specifications: Material: plastic + electronic components Color: As shown Electronic frequency: 27MHZ Remote control: 3V (2pcs x AA battery needed, which are not included) Receiver board voltage: DC3-4.5V Control distance range : about 10 meters Remote control size: 8 x 45 x 118mm Receiver board size: 42 x 27.2mm(1.65" x 1.06") Compatible with: For SINONING SN-RM9 Connection method: 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. Features: 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 Package Included: (NOT Include any other item shown) 1 x Remote Controller 1 x Receiver 1 x Antanna 3 X Screws