Brand new projector remote control, no programming, paring or setting is needed. Just install new batteries (NOT Included), it will work reliably. Compatible projector models: Maxell MC-WU8601B Maxell MC-WU8601W Maxell MC-WU8701B Maxell MC-WU8701W Maxell MC-WX8651B Maxell MC-WX8651W Maxell MC-WX8751B Maxell MC-WX8751W Maxell MC-X8801B Maxell MC-X8801W Notice: Make sure there's no obstacle between the remote control and projector when operating the device. Warranty: Refund available within 30 days, replacement available within 12 months from order date.