The Audio-Technica 700 Series Freeway wireless microphone systems are frequency agile systems operating in the UHF band between 542 MHz and 561 MHz. Audio-Technica’s 700 Series Freeway wireless delivers professional features and sound quality unheard of in its class. These easy-to-use wireless systems feature eight selectable frequency-coordinated channels, diversity operation for increased range/reliability, automatic frequency scanning, Tone Lock™ squelch and more.  The 700 Series Freeway systems come equipped with your choice of handheld or headworn microphones; or choose a system designed for guitar hookup. For multiple-system applications, as many as eight systems may be used together.