In the end, I broke 2 of the plastic tubes and the cloth that came with it. Y lo cierto es que, para salir a andar tempranito sin más ruidos que los trinos pajariles y el susurro de la brisa matutina, cumplen perfectamente su función, se escuchan bien y a un volumen adecuado. The reviews were great so I bought a pair. True to size, and what a value! Grip is ok. Got them as a gift for Valentine?s Day. What can I say ----- Skechers are some of the most comfortable shoes ! Therefore I must order a size 12 for my widdle feet. This was NOT an inexpensive purchase but when I first had it put together, I knew it was going to be trouble. É muito bom, principalmente para os sons mais baixos.