In the picture, the top audio track is from the microphone, while the bottom is from the microphone on my iPhone. * Mic sound quality (to your receiving party) - excellent. My 3 year old loved them she wore them all day around the house (and she always goes barefoot at home). These are definitely smaller my heel is right at the back of the shoe and my toe is touching the front. I dont care if it was used or new. I hope this helps you all. The outer sole is nice and thick with a slight amount of give. Loses one star for that. Also ordered the 100w block rocker, which sounds amazing! I use it as a diy green-screen holder for my Zoom meetings.