Stay/away function for arming and disarming Key fob - lock and unlock function Control up to 6 optional output relays Fully remote configurable through the Hik-Connect app Easily replaceable battery with PCB protection Frequency hopping The Hikvision DS-PKF1-WB remote control key fob supports instant operation of stay and away arming and disarming. This sleek and compact device is a great way to add an extra layer of security to the system with the ability to control up to 6 optional output relays and it is fully configurable through the Hik-Connect app.