Designed for active musicians, presenters and sound managers, the Shure PGX4 wireless receiver allows for an enhanced performance which is immensely superior than conventional wireless technology. For a smooth and worry-free installation, this Shure receiver features an automatic transmitter setup on-the-go. Plus, the automatic frequency selection feature in this Shure receiver locates a clear channel instantly. Moreover, to equip professional audio engineers with crystal clear sound quality, this wireless receiver includes Shure’s patented Audio Reference Companding technology. Thanks to the one-touch sync feature, this Shure wireless receiver automatically links to the transmitter via infrared. What’s more, the Shure PGX4 boasts a rugged construction to deliver a reliable performance.