Jolie et confortable. Ive since purchased more for my teenagers. but, I love how the author finished the book. The speed of the rotation might be better to have on "high" but the speed at which you move the device over your skin should be slow. Dont know why the description still mentions CL15 but then you can run this at CAS15 at a lower frequency. I like that when you move the ring, it stays put. 5 on that. Adorable, comfy sandal! The yellow was as pictured like a deeper colored mustard not a bright ares yellow. I am inclined not to believe they are Bluetooth 5.