Moreover, this earbud sits in my ears so well, this is the lightest iem among all of my iems. Detalles malos: parece que hasta que no termina de confirmate con "okei gugle" no empieza a escuchar lo que sigues diciendo, con lo cual google pilla las frases a la mitad. My left foot is about a half size larger. ?????? They fit true to size but I did need to add more holes in the ankle straps Because I have smaller ankles. Props for the Innovative idea however As far as instructions for getting these set up, they are non-existant. After that, I placed the phone in my room and I walked around the house, blocked by concrete walls, and there is no interruption. This item is sturdy and holds my bike in place very well. Just simple says steelseries.