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Portable Voice Amplifier for Teachers, 2200mAh Rechargeable Personal Amplifier Mic PA System Headset Microphone with Speaker for Teachers, Training, Meeting, Tour Guide, Yoga, Classroom (Black)- Brand: Beyerdynamic
- Color: Black
- Connector: USB
- Specification: 3.5mm Jack, VOVIGGOL, S17, 1, Battery Powered, AUX, Aux, Wearable, Plastic, Black, 0.4 pounds
- Model #: 251335782629

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Portable Voice Amplifier for Teachers, 2200mAh Rechargeable Personal Amplifier Mic PA System Headset Microphone with Speaker for Teachers, Training, Meeting, Tour Guide, Yoga, Classroom (Black)- Brand: Beyerdynamic
- Color: Black
- Connector: USB
- Specification: 3.5mm Jack, VOVIGGOL, S17, 1, Battery Powered, AUX, Aux, Wearable, Plastic, Black, 0.4 pounds
- Model #: 536650466130

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Portable Voice Amplifier Personal Microphone Headset for Speaking Rechargeable Mini Pa System for Teachers Tour Guides Coaches Classroom Singing Yoga Fitness Instructors- Brand: Beyerdynamic
- Color: Black
- Connector: USB
- Specification: USB, Micro SD, AUX, SHIDU, S258, Battery Powered, USB, 1, USB; 3.5mm Jack, Portable, Acrylonitrile Butadiene Styrene (ABS), Black, Guitar, Headset
- Model #: 799109057827

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Voice Amplifier for Teacher with Portable Microphone and Speaker, 18W Megaphone with Wired Mic Headset, IPX5 Waterproof & Rechargeable Bluetooth Speaker Systems for Tour Guide (NOT Wireless)- Brand: Beyerdynamic
- Color: Black
- Connector: USB
- Specification: 3.5mm audio input, USB, SHIDU, M800, 1, Battery Powered, Bluetooth, USB, Plug Mount,Freestanding, Acrylonitrile Butadiene Styrene (ABS), Black, 1 year warranty!
- Model #: 755198643059

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SAINTLARK S22 Voice Amplifier for Teacherswith Wired Portable Microphone and Speaker and Belt Supports MP3 Format Audio for Training,presentations, Guided Tours, Personal Voice Amplifier- Brand: Beyerdynamic
- Color: Black
- Connector: USB
- Specification: Microphone, Shengbailing, S22, Battery Powered, AUX, Type-C, 1, USB, Either 'Floor Standing' or 'Pole Mount', Acrylonitrile Butadiene Styrene (ABS), black, 0.6 pounds, 1 year
- Model #: 528524255077

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Live Sound Card Audio Mixer Recording Desktop Singing BT Power Supply OTG Digital Lossless Transmission for Streaming Podcasting Gaming Recording Soundboard Built-in Battery- Part Number: AOU6291398103462AM
- Specifications: AOU6291398103462AM, summina, 3, USB, Battery Powered, false, 24.6 L x 14.6 W x 5.2 H centimeters, 460.43 grams
- Features: USB, 3, Battery Powered, false
- Model #: 090955738635