Wireless Microphone System,W WINBRIDGE Wireless Lavalier Microphones, UHF Wireless Headset Microphone,Transmitter & Receiver for Speaker Camera,PA System,Teaching,Public Speaking,Voice Aplifier,WB029

It's ok. I thought it was bigger. But ots ok

I’m a teacher and it works perfectly during my classes

You have to put the microphone by your mouth before you can get the sound out

I am very pleased with this product.