The projector's IR remote control sensor is located at the front of the projector with a range of 8 metres (~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 at the front 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.