Bought several to install new head units in all my cars. Terrible quality after wearing this for a few months -The base where your foot rests started peeling away revealing a black blue substance that now stains my feet that color every time I wear this slipper- it was fantastic in the beginning but clearly it is all window dressing and underneath the footwear is of absolutely pathetic quality La calidad de cada instrumento y de la voz de verdad es increíblemente baja, y no estoy comparándolos con unos audífonos BOSE de 5,000, ni siquiera con los Sony XB de 800. In any case it DOES NOT WORK with this Garmin Edge model as stated in the description. They also make this weird squeak noise when I walk. If you have the white or black version, you might not have to worry about that as the material is black on those versions. I?d definitely purchase them again, and probably will when they eventually wear out (remember I walk anywhere from 5to 13 miles a day! Very useful when you?re out and about shopping yet need to take a call or want to listen to music but still be able to hear people around you. Basically it prevents the chemical bond in fats and oils from transforming into different chemicals which may have foul smells when it comes it contact with oxygen. Es gibt einen praktischen Lautstärkeschieberegler.