The SEAV BeHappy RS3 is a 3-channel remote that functions on the frequency of 433MHz. Aside from that, you can operate up to 3 individual doors or gates with this remote.
Important to know: This remote does not have DIP-switches and uses rolling code technology. There is also the S3 version that comes with DIP-switches and uses fixed code technology. These remotes can't be used interchangeably and don't communicate with the same receivers.
Programming your remote:
Program directly to the receiver. Consult the manual of your controller/opener/receiver.