, size 11-11. I bought these sunglasses because I am an aviation student in North Dakota. They are USB-C and work with my Galaxy S20 FE. Scroll wheel stays on, but back end RGB turns off when movement is detected. Very sturdy slipper and that makes them worth the money. Since I use these for 8 hrs a day I listen to all kinds of music. At the time of writing this, to get a louder, bassier portable speaker than a Turtlebox (120 decibels) youd need to buy either a Soundboks 2 (122 decibels, $999), a Teufel Rockster (122 decibels, $1059) or a DiamondBoxx XL (120 decibels, $1799). Its not rocket science. Its definitely things to RETURN! Comfort is simply perfect now.