STI-3300 SKU STI-3300-2658 Wireless Doorbell Extender Please log in to see price or purchase this item Request an account Line Comment Special Price Features:Wireless musical doorbell chimeConnects to traditional hard wired doorbellExtends doorbell to hard-to-hear areasLong range operates up to 500 feetOffers two selectable soundsUL/cUL Listed, FCC and IC Compliant