Product DescriptionThe key fob is a small proximity tag used to open doors on an intercom or access control system. It contains a coded chip that is read when the user brings the fob close to the reader which allows the door to unlock quickly and safely. The fob is made from durable plastic and has a built in hole so it can be attached to a key ring for everyday use. Its compact size makes it comfortable to carry and its sealed design protects the internal chip from moisture and daily wear. This type of key fob is commonly given to residents employees or regular visitors in buildings where a simple touch free way to enter is needed.