Brand new projector remote control, no programming, paring or setting is needed. Just put in new batteries (NOT Included), it will work reliably. Compatible projector models: Optoma ET700XE Optoma HD65 Optoma HD70 Optoma HD71 Optoma HD75 Optoma HD640 Optoma HD700X Optoma GT7000 Optoma XB1000Notice: 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.