Please note that this remote control is not compatible with every brand of mini projector. It is intended solely for use with the brands and models specified in the listing title. This remote is designed to work with the following mini projector: ELEPHAS BL128. This replacement remote requires no programmingjust insert the batteries and it functions right away. It matches the original factory unit in a 1:1 size ratio, making the swap straightforward and fast, typically done in about 1-2 minutes