The Nuki Fob is compatible with every Nuki Smart Lock and does not require a Nuki Bridge Wifi connection. Up to 100 Nuki Fobs can be paired with one Nuki Smart Lock. One Nuki Fob can be authorized for up to 100 Smart Locks. Access to your Smart Lock can easily be granted or removed individually on your Nuki app for any Nuki Fob. If a Nuki Fob gets lost, access permissions can easily and quickly be deleted using the Nuki app.