4CH 40MHZ Remote Transmitter & Receiver Board with Antenna for DIY RC Car Robot

This is a 4CH 40MHZ Remote Transmitter & Receiver Board with Antenna for DIY RC Car Robot it has RC transmitter and receiver which has an Electronic frequency: 40 MHz. The remote control distance of the RC transmitter and receiver, in the case of adequate electricity, without interference, the correct access to the antenna after about 10 m, above only for reference. Specification: Electronic frequency: 40MHZ Material: Metal and PCB board Color: Green Receiver Size: app. 4.1×2.7cm/1.61×1.06inch Transmitter Size: app. 3.8×5.6cm/1.5×2.2inch Antenna length: app. 26cm/10.24inch 18.2cm/7.17inch Package includes: 1 x Transmitter Board 1 x Receiver Board 2 x Antenna Note: This module will only work with a good quality battery whose voltage should not go above 6v or below 3.7v. Don’t use this module with Lithium Polymer Batteries. To improve the sensitivity of the rc transmitter and receiver, please give the motor with fire-fighting capacitor Wiring: (1) Transmitter board: red line V wire the power supply positive, black line V – wire the power supply negative, ANT wire antenna