4CH 27MHZ Remote Transmitter & Receiver Board with Antenna

4CH 27MHz Remote Transmitter & Receiver Board with Antenna is designed for wireless control of RC devices using 27MHz frequency with stable multi-channel communication. Ideal for robotics, RC vehicles, and DIY wireless control projects. Features: 27MHz RF Wireless Communication 4 Channel PWM Outputs Compatible with RC Servos and ESCs Stable Signal Transmission Includes Transmitter and Receiver External Antenna for Better Range Compact and Lightweight Design Specifications: Parameter Value Operating Frequency 27 MHz Channels 4 Channel Output Type PWM Receiver Size 41 × 27 mm Transmitter Size 56 × 38 mm Antenna Length 26 cm / 18.2 cm Material PCB + Metal Color Green (Receiver) Compatibility RC Servo / ESC Package Includes: 1 x 4CH 27MHz Remote Transmitter & Receiver Board with Antenna