Giecy Voice Amplifier with， More efficient work and save your throat
Giecy Voice Amplifier Portable Bluetooth 30W 2800mAh Rechargeable PA System Speaker for Multiple Locations Such as Classroom, Meetings and Outdoors（black/yellow/red）
Voice Amplifier Portable Microphone Headset Voice Amplifiers Personal 2600mAh Rechargeable PA System for Meetings Classroom（Black/Green/Blue）
Giecy Voice Amplifier Portable 20W 2600mA Rechargeable with Wired Microphone Headset for Teachers Tour Guides,Meetings and Classroom
Giecy Voice Amplifier with Microphone Wired Headset, Rechargeable Lithium Battery Portable Mini Speaker for Trainee Teacher Tour Guide and Outdoors
