If you have IR programmer CLR7108/CLR7308, please buy this
products, otherwise, please buy this with CLR7108/CLR7308 together.
CLR7980-E4 may control 4 devices.
CLR7980-E4 should be programmed by PC software via CLR7108/7308
programmer or Phone App via CLR7308I/7308M/7308T.
PC software can be downloaded from http://www.cldic.com
App may be found with keyword "Longer IR" in Apple Store and
Google Play Store.