The CUE software features a graphical representation of the keyboard and shows you the live coloring effects so you can see exactly what your keyboard will look like even if you don?t have it next to you. They all have their quirks, but for the most part do stay in my ears without having to fiddle around while I am running. Im loving this pair I bought, they are quite cozy. Second edit: I found a local place and ended up purchasing a size 9 for my daughter. Do opt for the smaller size. Im a size 8 and purchased that perfect fit. The vacuum continues to get stuck under a kitchen cabinet or a coffee table. This is a great pair of headphones that I would suggest anyone get. - Top optical sensor (3366)- Small ambidextrous design (with side buttons on the left)- Omron switches (light buttons)- Weighs about 85g (without cable)- Logitechs software and overall quality- RGB lights- Tactile stepped but smooth scroll wheel. I decided to replace the default with the shorter spring so there is less tension needed to move the stick around.