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Mini portable electro wired wireless microphone megaphone speakers amplifier for teaching meeting tour guide,Function:U disk/TF card/Blue--tooth Product Name::K51 Voice Amplifier Drop Shipping:Support Type:Mini Amplifier Model Num...
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Portable Audio Player Singing Speech Handheld Desktop Shock Mount Wired Condenser Recording Mike Mic Microphone,Drop Shipping:Support Sensitivity:-41dB±2dB, -42 dB ± 1 dB Frequency Response:60 HZ - 15 KHZ Frequency Response Rate:5...