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Amazon.com: EXMAX Over Ear 3.5mm/1/8" Hands Free Cardioid Wired Audio Boom Condenser Classroom Mic Headset Microphone for UHF-938 ATG-100T Wireless Tour Guide System Voice Amplifier Conference PC Laptop Tablet : Musical Instruments
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Amazon.com: Wireless Microphone Headset, UHF Wireless Headset Mic System, 160 ft Range, Headset Mic And Handheld Mic 2 In 1, 1/8''&1/4'' Plug, For Speakers, Voice Amplifier, Pa System(Incompatible Phone, Laptop) : Musical
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