Combine the Xvive Audio U3R receiver with a U3T transmitter, and you have one of the easiest wireless solutions around. Utilizing the 2.4GHz wireless band, the U3R is approved for use in North and South America, Europe, Asia, and Australia. With its high dynamic range and wide frequency response, you're assured high-quality audio. And with up to five hours of battery life and up to 90 feet of wireless range, the Xvive Audio U3R is ideal for a wide range of applications, from music performances to public speaking and lectures.