Isali 4CH RC Remote Control 27MHz/40MHz Circuit PCB Transmitter & Receiver Board Radio System 4.5V-6V for Toy Cars - DIY Hobby RC Vehicle Upgrade (Color: 40MHz) - Perfect for Kids' Remote Control Cars, Robotics Projects, and RC Model Enthusiasts

4CH RC remote control 27MHz/40Mhz circuit PCB transmitter&receiver board for the toy carSKU: SNRM12/SNRM13Dimensions: 3.5 * 7 cm emission plate, receiver board 2.6 * 4.3 cm. Frequency: 27MHZ/40Mhz emission plate voltage: 3-4.5V. Receive board working voltage: 4.5v-6v. Received board OUTPUT :4 lines,2v-3.5v receiving range about 10meter Connection method: (A) emission plate: red V+ positive power supply, black wire V- negative power supply, ANT connect the antenna. 3-4.5V (2) receiver board: black wire = negative power supply, red wire =positive power supply. L R wire for motor 1 can supply continue powerful supply F B wire for motor 2 can supply continuous power supply Note: note: only can use small power motor, such as 130 motors, high power motor can burn the board.it can control 2 motors go and backwhat different between 20Mhz and 40 Mhz?they are same, only the frequency difference, use a different frequency, they can play together at same time.Item specifics:Use: Vehicles & Remote Control ToysMaterial: PlasticRc parts & accs: Radio Systems