·The special and pleasant sound of the doorbell has several bel cantos for all people to choose

·Delicate streamlined appereance shows the special tastes of the host

·Up-dated intelligent flash light design brings convenience to the hearing handicapped

·Ultra-distancedrepresents the technology of surpassing obstacles

·Wireless easy mountingdesign never affects youe inner decoration and makes the doorbrll anywhere youlike

·All day longanti-interference system , pretends the doorbell from interferences outside orbetween neighbors