PB-453R is a mini wireless remote controller with 4 keys; it is one of the important accession of our company and has the function of controlling the wireless products. With a special outlook, it can be decoration and convenient for taking. It is easy for using, has high sensibility in 100 meters. After coding with wireless products, it controls wireless products. The emergency bottom key for you to send out emergency immediately. For better protection of your security, it is a good choice for your smart home system.