Here at AmpliVox we sell both UHF and VHF wireless systems. A lot of our customers ask which is best for their setup. Here are some factors to consider when purchasing a wireless sound system and spending your dollar wisely. Factors to include are: where the systems will be used, how they will be used, and for what purpose or application. Other factors, such as whether the equipment will be used in many different cities, may also be important.