After-sales Service: If you have any questions about your order or model, reach out to us directly and we'll get back to you within 12 hours on weekdays.Package Included: 1 x IR remote control (Batteries and Instructions are Not Included). It can solve the problem when your home remote control doesn't work and becomes your backup remote control.Easy To Use: New ABS material, better craftsmanship, and ergonomic arc design ensure easy to hold. The keys are responsive and feel great to touch. With a control distance of over 26 feet and an angle of more than 120 degrees, you'll have a better and free remote control experience.How to Pair: Please pair before use. Press and hold the Vol+: and Vol-: buttons to start pairingCompatible Models: replacement projector remote control compatible with AURZEN Boom 3 Projector, for Goodee Boom Projector, for Elephas NexiGo projector, for YG600-Movin projector