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

Description: 100% brand new and high quality Electronic frequency: 40MHZ Working voltage: 3V for transmitter board, 4.5v-6v for Receiving board Material:Metal and Plastic Size:18cm/7.09''; 25cm/9.84''(approx) Color:As picture shown Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x 40mhz Transmitter Board 1 x 40mhz Receiver Board 2 x Antenna 2 x Screws with nuts(other accessories demo in the picture is not included.)