comfort and a great price Super comfortable when going for long walks or just standing. I played a Motley Crew song and had a whole new appreciation for the song, and for the expertise that went into recording it. Sad that this device would only last 8 months before dying. The instructions leave nothing to the imagination of a do it yourselfer as well as a seasoned professional. Great product fits perfectly and easy to install. The sandals are very lightweight and are quite comfortable with the Birkenstock soft footbed. Proper bass and clear miss n highs. Used hollow core door anchors to attach to the back of the bathroom door and it was up in minutes. Wearing a hat over earbuds is very painful and I?m very excited to have these.