If you&#x27;re talking about 2-meter radios, you&#x27;re going to need a ham radio license to use them in the US.  It&#x27;s not hard, but it is necessary.   Also, FCC regulations do not permit &quot;broadcasting&quot; on these bands.  That is, you can&#x27;t play music over them.  Having a music festival playing in the background is flirting with that rule.   You&#x27;re better off just using FRS radios.