Only one works - receiver seems faulty.
"I purchased these rechargeable microphones to save on the cost of AA batteries. However, the receiver recharge ports are not working as they should. One stays a solid red and they are supposed to turn to green I believe once the microphones are recharged. That is not happening. I tried to phone Pyle for customer support during their business hours, but they never answered the phone. There is nothing that addresses this issue in the product manual and I read it numerous times. I want them to work properly and they do not. I have asked to return them and I will be doing that. I like them, but I need them to work properly and I cannot get any support to guide me."

