Nice article. Because I notice these things you may want to run grammar check there's some issues with allot/alot/a lot and use of possesive.
I've used a few wireless barcode scanner from Symbol. Some are just WM2003 PDA running proprietary frontends to the the backend SQL database. They send the barcode being scanned back. And they play solitare
I've got a symbol wireless scanner at my desk now for a client. I'll grab the FCC ID. It pairs with the base. But I don't believe it normal 2.4Ghz wireless. The local supermarket uses bluetooth scanners at the checked (paired with base stations)
Oh and if you want to have fun. Watch the bluetooth for people's name and them call them out to see who looks. If you're really evil you take it farther. Ned? Ned Ryerson?!