Convert existing IR remote to digital RF by replacing 1 battery in a remote with the battery transmitter working up to 100Control 2 same-brand ponents independently from anywhere in the houseWorks with most AA and AAA remotesReceiver has built-in chargerAvailable in 433 MHz or 418 MHz frequenciesIncludes single-eye IR emitter and 2 2/3 AA specially sized rechargeable batteries