KR-S80 Optional AC Adapter/USB Cable kit.
The AC Adapter is designed to power any of the KR-S80-B or KR-S80-D locks. It can also be used for emergency power in the event the batteries go dead.
It is an option for your convenience depending on what works for your life style and home environment.
The kit consists of one AC Adapter and one 19.5 inch long USB Cable to 3.5mm power connector.