User Manual BDL5530ELRETURN TO THE CONTENTS2.4.2. INSERTING THE BATTERIES IN THE REMOTE CONTROL1. Remove the cover on the rear of the remote control.2. Insert two AAA size 1.5V batteries ensuring that the “+” and “-” ends of thebatteries are correctly aligned.3. Replace the cover.Note: Do not mix battery types, e.g. alkaline and manganese.2.4.3. OPERATING RANGE OF THE REMOTE CONTROLWhen pressing a remote control button, point the top of the remote control towardsthe remote control sensor.Use the remote control within a distance of about 10m/32ft from the display's remotecontrol sensor and within a horizontal and vertical angle of 45 degrees.Note: The remote control may not function properly if the remote control sensor on the displayis under direct sunlight, in a location with strong illumination, or if there is an obstacle in thepath of signal transmission.