I rate these headphones 9/10, excellent, but not perfect. I recommend these to anyone, even professionals. These are professional quality studio monitor headphones. You can't go wrong with these. Super value. Get them, you will not be disappointed.
This one has just about everything....positive reinforcement, silliness, no mouthing hazard, sticks on the refrigerator (or on a metal clipboard in the car), bright colors for the littles, lots of ways to play, yet inexpensive and likely to last a long time. This is excellence in toy making :)
Here's a hint - worked for us (thank goodness). Take a piece of duct tape (we used white, prettier) and put it over the speaker. It made the toy less overwhelming for the baby and she really has fun with it now. The music is still audible, just not quite so loud.