I have limited mobility; hiking is the only exercise I am capable of, and KEEN is the only company that makes a shoe that I can stand in or walk all day. It can hold the earbuds, a short charging cable, the charger, it comes with a micro fiber cloth for cleaning. but it wouldnt stop me buying another pair. Y qué podría decir que no se haya ya dicho de unos Hyper X, la calidad de audio es asombrosa, eso sí, el volumen máximo deja un poco que desear. My feet had started to hurt recently and I was getting corns on the soles of my feet. Velcro version works much better. The keyboard can pretty much be whatever bundle of colors you want it to be thanks to the Synapse program its controlled by, and even though the mouse and mousepad only light up a single color, they still compliment the keyboard very well. There is a mute feature on the wire, (along with volume control), and without pressing the button while on my first 3 calls the headset was broadcasting "mute on, mute on, mute on" in rapid-fire succession. The filter is also easy to pop in and out. I wear size 12 in a number of different tennis shoes and slippers.