The projector has two IR remote control sensors. One is located at the front and the other at the top of the projector, both with a range of 8 meters
(~26 feet) at an angle of 30-degrees (left and right) and 20-degrees (up and down). The remote control can be used either by pointing it directly at the
IR sensors at the front or top of the projector or by reflecting the IR signal off of a wall.
Make sure that there are no obstacles between the remote control and the IR sensor on the projector.