Note: There are some sex and violence that definitely lean towards the graphic that might make some uncomfortable, so be prepared for that. They never loosened or slid. If you use Onkyo HF player, simply make its EQ graph same as shown in the picture. The only option in the actual google store was a very firm hard case. The unicorn looks slightly distorted, and they are soooo much bigger than the size. Love my little shoe rack! Time will tell as I will use these as my water sandals. Didn?t realize it until we got home. It pairs very well for use with apps that have messenger video calling, watching movies, listening to music. I could get these at a retail store for alot cheaper.