· Works For Anker NEBULA Cosmos 4K SE Smart Projector D2342, NEBULA Cosmos Laser 4K Projector ‎D2350· This is infrared sensor remote control,No programming or setup required. Put new batteries inside can work well.· Power Supply: 2X 1.5V AAA Alkaline Battery· ***Battery and User Manual Not Included· R-C-AI1-D0413