Control the projector from your phone easily and for free! The free universal projector control app will replace the physical remote, in case the battery runs out or the remote is damaged. Note that your phone needs to have an infrared port for the Projector Remote to connect and work. You can connect to multiple projectors on a single app, the controls are exactly the same as a physical remote control. App features: - Turn on the projector, turn off the projector - Select the input channel - Volume up and down - Adjust the screen size Thank you for your interest in the Universal projector remote control app, hopefully the app will bring a lot of value to you.