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Amazon.com: Voice Amplifier for Teachers, APROTII Portable Mini Speaker Large Capacity with Rechargeable Battery,Wired Headset Microphone,Support FM MP3 TF Card (12W) : Musical Instruments
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Amazon.com: Voice Amplifier for Teachers, APROTII Portable Mini Speaker Large Capacity with Rechargeable Battery,Wired Headset Microphone,Support FM MP3 TF Card (12W) : Musical Instruments
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