Compatible Models - Only for TCL GTV Projector C1, A1 A1s, for HAPPRUN 510G Google TV Smart Projector ^^ Voice Control - just press and hold the voice button to speak and jump to your favorite content in seconds (Note: The voice function can only be used after the remote control is successfully paired) ^^ Easy to Pair - Press and hold [HOME] and [RETURN] buttons on the remote at the same time for 3 seconds, The remote contol light will flash red for 3 seconds, then release the buttons and wait for pairing (Tips: Keep the remote control within 30 cm of the projector during pairing. ^^ High Performance - Engineered with high-quality ABS material and a new-gen smart chip, delivers instant button response and reliable 8m/26ft range coverage. Its 120-degree wide-angle design eliminates positioning constraints, while the ergonomic curved shape ensures comfortable, fatigue-free control for extended daily use ^^ Package List - 1 * Remote Control ( 2 * AAA Battery Use Manual Not Included. ) If you have any questions, please contact us through AMZ tools and we will help you within 12 hours