I noticed at the Shop Rite located in Elizabeth, NJ, security guards and the customer service workers carry radios with them. They are definitely radios and not nextels! Does anyone have ideas on what frequency they may use? I tried to close call them while doing my shopping recently, but they hardly use the radios and couldn't pick them up while I was there. There's nothing in the FCC database for Shop Rite. If anyone knows the actual security company they hire from, that may be a start.