0-AIR-2082 11:07 FROM TO 166614162461020 Features of WC2002S Wireless Chime Receiver sine 0 NO installation Up to 150 fest working range. 16 delectable house code Flashing light signal for hearing impaired. Bail-in Ding-dong sound. Chine INSTALLATION Insert the two batteries into the battery compartment according to the correct polarity {+ & -) marked. Model WC2002S requires 2 pieces of “C batteries {Alkaline batteries are recommenced). Press the button of the transmitter to make the chime sound and flash.