A wireless local area network transceiving integrated circuit services voice communications in a WLAN with at least one other WLAN device. An anti-theft collar is included around at least a portion of the axially extending member, the collar being securable to said axially extending member. The differential local data line voltage is subsequently amplified to form an amplified differential local data line voltage. The invention is characterized in that at least one brake cylinder device is arranged inside the chute, said brake cylinder comprising at least two rotationally driven brake cylinders. It is based on recognizing abnormal brainwave signatures and intervenes at the earliest moment, using magnetic andor electric stimulations to reset the brainwaves back to normality.