All you can do is insert your case into the bottom of the unit and remove when needed. The cord feels very durable. Movies/videos/etc were fine too. Sie sehen zudem auch noch klasse aus, ein richtiger Allrounder und zu allem tragbar. On one slipper. My purpose was to purchase a drying rack for hanging laundry. I was so blown away with these things I had to leave my first positive review! My husband gave me my third pair for Christmas. I’m a 7-7. My previous pair had fleece lining, these do not, but they are still surprisingly comfortable.