Shure PSM900 Wireless In-Ear Monitor System with SE425 stereo headphones (clear), G7 Frequency Band (506-542 MHz)
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3 Receivers Assistive Listening System Uhf 3-person Wireless In Ear Monitor System Stereo Earphone In-ear Monitoring 830-842mhz - Earphones & Headphones - AliExpress
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Amazon.com: CAD Audio GXLIEM4 Frequency Agile Wireless In Ear Monitor System -Four discrete mixes - includes 4 MEB1 Earbuds, 4 Bodypack Receivers, Rack Mount Ears and Antenna Relocation Kit ,Black : Industrial & Scientific
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