YK04 WIRELESS REMOTE CONTROL RECEIVER AND TRANSMITTER 315MHZ IC2262 2272 4 CHANNELS

It is a 4-channel transmitter with a keychain format and a retractable antenna, and a simple receiver based on the 2272 chip, which activates one of 4 pins depending on the button that is pressed on the remote control.
The 315Mhz RF Module KIT has a range of up to 60 meters, you can configure the pairing address, in order to be able to work the receiver with various controls.

SPECIFICATIONS AND CHARACTERISTICS

Operating frequency: 315 MHZ.
Maximum Range: 60 meters (depends on the working environment conditions)
RX operating voltage: 5V
Modulation: ASK
RX size: 40 x 23 x 5mm