Featuring transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage, the QLXD1 Wireless Bodypack Transmitter is ideal for wireless vocals and instruments in mid-size presentation spaces, music venues, and houses of worship. Easy to use, the QLXD1 quickly syncs with a wireless receiver over IR at the push of a button and maintains clear, uninterrupted signal over its entire 100 m (330 ft.) range. All metal construction ensures durability, and a wide selection of compatible microphone choices offer legendary Shure sound signatures.