The only thing I don't like is that the switch on the receiver connected to the speaker doesn't make good contact, and I have to fiddle with it until I find the position where it makes contact. As a result, I don't turn off the receiver during breaks, so the battery gets used up for no reason. Also, the receiver's battery has a low capacity, so I had to buy two rechargeable batteries with a higher capacity for the receiver, four rechargeable batteries for the transmitter (which is worn around the waist), as well as a charger for the rechargeable batteries. Otherwise, the waist-worn transmitter is quite convenient, and the switch that lets me turn it on and off whenever I want is very handy. The head-worn microphone is also very comfortable; to the point that I don't feel it or find it bothersome at all when I wear it from 8:00 to 13:30. Only when I need to have a drink do I move the microphone aside a little, then put it back with one movement. The connection between the transmitter and receiver has no issues. I now go home with a rested throat. I speak softly, yet I can be heard clearly and loudly in the schoolyard. I would give it 5 stars if it weren't for the issue with the receiver switch not making good contact.