Sorry for the confusion I meant to say the FRS radios off the shelf using channels 15 through 22 not the FRS business band those are GMRS and require a licensed and there were so many interference issues that stores in metro areas couldn't use any of the frequencies most store already had XTN VHF radios they just added the newer RDU and switched to MURS less congestion and interference. Wal*Mart.com actually offer for sale the very same radios they use in the stores. Also FRS devices have a maximum power of ½ watt (500 milliwatt) nowhere near enough power to effectively cover the inside of a 250,000 plus square foot store full of merchandise and fixtures that even further the effective range they discovered GMRS channels provided a full one watt but the batteries couldn't stand up to the heavy use.