The Personal PAr Value Pack System broadcasts a speaker's voice, music program, or audio service wirelessly up to 1000 feet to a listening audience. Participants using the (included) PPA Select single-channel receiver with a headset can listen to the broadcast at the volume of their comfort. The cornerstone of the Value Pack System is the T27 transmitter, featuring an LED display panel and push-button channel selection for easy operation. This System has 17 available channels and operates on 72-76 MHz. This system complies with 2010 ADA guidelines for hearing assistance and is covered by an industry-leading 5-year warranty.