Hello, I have few months ago a projections screen (https://www.esmart.de/) it has a remote model RC-120 / frequency 433.92 Mhz I guess it is based on http://www.rficy.com/wp-content/uploads/2013/12/CY800-801.pdf inside the remote are indicated the following: - cy-120c2 - https://zjgcydz.1688.com/ It...