141.PART NAMES AND FUNCTIONSRemote Control Battery Installation3. Slip the cover back over the batteries until it snaps into place.1. Press firmly and slide the battery cover off.2. Remove both old batteries and install new ones (AA).Ensure that you have the batteries’ polarity (+/-) aligned correctly.NOTE: The remote control is powered by two alkaline 1.5V AA batteries.Remote Control Precautions• When using the remote wirelessly, you should be within 23 ft.(7 m) of the projector and at an angle of no more than 30 degrees.• When the cable is connected to the remote control, it will not work wirelessly.• Handle the remote control carefully.• If the remote control gets wet, wipe it dry immediately.• Avoid excessive heat and humidity.• If you will not be using the remote control for a long time, remove the batteries.• Do not mix new and old or different types of batteries.• Avoid using the remote control as wireless with the backlight switch ON for an extended period of time. This can cause shortbattery life.• Be sure to secure the remote control with the metal fitting when installing the projector on the ceiling and using the remotecontrol as the key panel of the projector.