ITEM NAME:27MHZ Remote Controller Receiver Transmitter Board with Antenna Module Set Description: 27MHZ 4CH RC Remote Control Circuit PCB Receiver &Transmitter Board with Antenna for DIY RC Car Truck Accessories Electronic frequency: 27MHZ Material: Metal Color: Green Size Chart: Receiver: Approx. 41 x 28.6mm/ 1.6 x 1.12inch Transmitter: Approx. 40 x 55mm/ 1.57 x 2.16inch Package Includes: 1 Piece Transmitter Board 1 Piece Receiver Board 2 Pieces Antenna SKU: DMO0004045276005460.Electronic frequency: 27MHZ. 1 Piece Transmitter Board. Transmitter: Approx. 2 Pieces Antenna. 1 Piece Receiver Board. Receiver: Approx. People always bought together with.