Giecy Wireless Microphone Headset, UHF Wireless Headset Mic System Rechargeable Microphone and Wireless Receiver for Voice Amplifier,PA System,Teacher, Tour Guides,Coaches

Voice Amplifier Portable Microphone Headset Voice Amplifiers Personal 2600mAh Rechargeable PA System for Meetings Classroom（Black/Green/Blue）

Giecy Wired Headset Microphone for Voice Amplifier,Flexibly Adjustable Microphone for Teachers, Coaches, Presentations, Seniors

Giecy Voice Amplifier Portable 20W 2600mA Rechargeable with Wired Microphone Headset for Teachers Tour Guides,Meetings and Classroom