For Optoma Projector Remote Control for DS322 DS317 DS316 DS219 DS216 ES521
Compatible Models: for optoma projector: for DS322 DS317 DS316 DS219 DS216 DS211 DS306 DS671 ES530 ES529 ES521 ES522 ES520 ES531. No programming required, put batteries in and it can work well. (Battery Not Included).