thanks AMCROSS , I was looking this mourning online and could not find a 4C with the 27mhz freq. I need, so I continued to look and realized I may be better off just buying the 4c with the receiver included , the price isnt that much different , also , I beleive FM-72mhz freq is bettter than FM- 27mhz ......is this true ? or does it depend on location of use.... thanks again