But you have to plug it in to the others to get your coun back and there is one initial dock dongle thingy. Also many supermarkets (at least in germany) start

But you have to plug it in to the others to get your coun back and there is one initial dock dongle thingy. Also many supermarkets (at least in germany) start doing some weirdly accurate geofencing with automatic breaks on the carts. I wonder how it actually works. edit: http://www.gatekeepersystems.com/sol_cc_cc_how_it_works.php http://www.gatekeepersystems.com/sol_cc_cc_how_it_works.php