all make buzzing noise when plugged in. called the company that makes them. they say all are defective.
I had a few act up like that when I first got them. The thing that seems to work best for these is to plug them in to charge in the “off” position for a few hours. Then try to use them.
If that doesn’t work - please write in to http://morningsave.com/support for assistance.
ty. dont know why there own maker of product did not know what to do. i did the same as u. and right now, just red light flashing telling me they are charging. will see what happens when they are fully charged.