An array antenna transceiver includes an antenna section, N transceiver blocks, a common reference signal generating section and a transceiver control section. More particularly, the present invention relates to a particular class of chemical compounds that has proven useful as modulators of SKCa, IKCa and BKCa channels. In order to produce such a security label that can be easily opened, but still provides protection against unauthorised opening by children or inadvertent opening, and can be produced cost-effectively, obstacle points are provided on the cut strip, forming a resistance when the removal element is removed.