100 Channels on AirThis wireless monitoring system has a total of 100 channels, with the widest tuning range, ultra-linear RF transmission and a stronger signal than any other ear monitor system. 30Hz-20KHz wide frequency response, 107 dB dynamic range.UHF Band 500-590Mhz wireless in-ear monitor system create your personal or teams monitor system. uncompressed wireless signal transmission, low noise and latency. Provides smooth frequency response with any headphones.Enhanced RF performance up to 160 feet The dual-antenna diversity bodypack receiver adopts advanced digital signal processing technology to increase the signal and eliminate the blind angle of reception. Enables users to move freely in open spaces with an operating distance of 100 feet - 160 feet. The launcher is made of tough metal material. It is the best choice for wireless in-ear monitoring.Expandable Wireless Monitoring SystemUnlimited quantity, unlimited bodypacks can be added, which can be used for stage monitoring tasks of the whole team, high-quality earplugs provide pure sound and enhanced performance. It is perfect for all kinds of wireless stage return events, guitar monitor,performances, studio recordings, exhibitions, presentations, coaching and more. Can be installed on standard rack units.Buy with Confidence30 days money back one year warranty, any question clicks in YOUR ORDER options click the contact seller. Packing list: 1* Wireless in-ear system Transmitter,1* UHF Bodypack Receiver, 1* 6.35mm audio cable. 1* In-ear earbud, 1* Power Adapter, 1* Antenna, 1* Manual.