LD Systems easy-to-use in-ear monitoring systems with earphones are also available as in-ear wireless systems, with the transmitter and receiver also available separately.
PSM 900 - Professional In-Ear Personal Monitoring System - Shure USA
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Wireless In-Ear Monitor G-MARK G6000Pro Max UHF Stereo Stage Return Frequency Selectable For Singer Guitar Studio Band Show - AliExpress
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