Wide ApplicationElectric projection screen, electric garage door, electric rolling door, electric rolling door, etc. [Receiver control device] The receiver control device has the characteristics of high confidentiality, large storage capacity, stable performance and low power consumption. With remote control holder (transmitter)Wireless control, very convenient and convenient to use. You can turn on/off the receiver with the transmitter (remote control) anywhere within a reliable distance. Learning codingIt can be used with any remote control with the same frequency, so you don't have to lose the remote control anymore. (If the remote is lost, buy one and pair it with the board.) [Ultra-small body] Easy to use, ultra-small body, does not take up too much space. Product description Wireless remote control, supporting wide range The remote control distance can reach 100m (open area), and the receiver can be turned on/off by the transmitter (remote control) anywhere within a reliable distance. With remote holder (transmitter) easy to install, directly replace the old or broken ones. Low power consumption, stable performance, large storage capacity The learning code can be used with any remote control with the same frequency, no need to lose the remote control again. (If the remote is lost, buy one and pair it with the board.) Remote Specifications: Frequency: 433 MHz Range: 100 (open space) Receiver Specifications: Channel: 2 Operating voltage: AC220V10% Working frequency: 433 MHz Max load: 500W packing list: 1 * receiver board 1 * remote control 1 * remote control holder