U45 In-Ear Monitor Wireless System Wireless In-ear Monitoring System with Plug-on Transmitter and Bodypack Receiver - 5.8GHz; and Professional In-ear Monitoring Headphones. U45 Complete System: 5.8 GHz True Diversity system with a reliable 100-foot wireless connection Automatically scans the available wireless channels and selects the best one High-quality, ultra-compact wireless system for in-ear monitors Audiophile 24-bit / 48 kHz sound with less than 5 ms of latency Up to 6 U45 systems can be used in one area simultaneously

Wireless In-ear Monitoring System with 1 Plug-on Transmitter and 2 Bodypack Receivers - 5.8GHz. U45R2 Two-pack U45 System: Wireless in-ear monitoring solution for two people (includes two receivers) High-quality, ultra-compact wireless system for in-ear monitors Audiophile 24-bit / 48 kHz sound with less than 5 ms of latency State-of-the-art 5.8 GHz wireless technology Reliable, solid RF connection over a range of 100 feet

Wireless In-ear Monitoring System with 1 Plug-on Transmitter and 4 Bodypack Receivers - 5.8GHz. Perfect for transmitting wireless signals from mixers or the line outputs of amps, the U45R4 provides crisp, 24-bit / 48 kHz audio for IEMs and headphones. U45R4 Four-pack U45 System: Wireless in-ear monitoring solution for four people—a whole band! (includes 4 receivers) High-quality, ultra-compact wireless system for in-ear monitors Audiophile 24-bit / 48 kHz sound with less than 5 ms of latency State-of-the-art 5.8 GHz wireless technology Reliable, solid RF connection over a range of 100 feet