It is a learning code wireless remote control switch (receiver), the output way / working way can be changed as you like, it is easy to match the transmitter. It has 4 relays which can make the equipment turn on or reverse, on / off and so on come true. The volume is small and the performance is stable and reliable, receive high sensitivity. It covers the application ranging from simple household remote control to standalone control, such as automatic door, window, lifting equipment, entry access, and down controller, industrial control of alarm and security, etc. Remote controls are designed to control a wide variety of electronic devices with a wireless signal. Extremely easy to set up and use. Compatible with 2262/2260/1527/2240 etc chip and multiple remote control codes without . So it can meet the needs of choosing the remote control as to work with someone. Color: As shown Receiver: Operating voltage: DC12V Idle state: less than 6mA Operating temperature: -40 to 80 Celsius