High quality sound with Sony digital audio processing NFC SYNC function for quick and easy secure channel setting (IR sync capability with URX-P03, URX-P03D and URX-S03D receivers) Interchangeable head for wide choice of microphone capsules Auto gain mode volume control +15 dB gain volume boost mode for off-mic audio Transmitter frequency sent to receiver for matching multiple receivers to one transmitter Variable muting function Compatibility with Sony WL-800/UWP/UWP-D series High visibility OLED display, ideal for indoor/outdoor use