These shoes are absolute rubbish. I mainly got them so that I could easily slip them on if I have to go outside for something real quick, and I dont feel the need or desire to put on an actual pair of shoes. Update 6/10/16: Have been using the same clip almost every day for months now. No tiene manos libres pero eso es claro al escoger los equipos de Xiaomi. Silicone = Ear Pain. Otherwise a nice slipper. I wear mine with no socks. Got it fast, fit perfectly, no issues with anything else! Insurance is supposed to be there when you need it. The microphone worked well for phone calls and the callers I spoke to did not have any trouble understanding me.