A user closable collar for a vacuum cleaner bag, the collar body being formed from a single blank of relatively rigid material which is folded to define three generally overlapping and planar panels, a middle panel having fixed raceway element which is adhesively secured to a first outer panel and a second outer panel, each of the outer panels having openings or apertures. The magnetic recording medium having, on either side of a flexible nonmagnetic support, a nonmagnetic layer containing a nonmagnetic powder and a binder, and a magnetic layer containing a ferromagnetic powder and a binder, having a thickness in the range of from 0. The security information processing unit adds a relay device ID and relay device authentication information to the first security information to generate second security information. The smart network device comprises a web server accessible from the host computer.