1491605 149160500 Replacement Projector Remote control fit for EPSON Projector No any program needed, only put into brand new battery will work well. Compatible model: S6 EX21 EX30 EX50 EX51 EX71 EX78J Power Supply: 2X 1.5V AAA Alkaline Battery(Not Included) If you are not sure whether this remote is you need, you can contact our customer service, they will give you more professional suggestion.