:3Por cierto volví a comprar alámbrico porque los alámbricos nunca me han fallado ni interfieren con mi modem, no me arrepiento para nada de haberlos devuelto y comprar estas maravillas en su lugar, vayan por los suyos mientras estén en ese precio, no se arrepentirán. I really didnt need anything from the manual. I deducted 1 star because the straps across my instep were too loose, causing the soles of the sandals to slap against my feet when I walked. If you prefer wireless for the kids, then these are great. I’m 5’5 and weigh 157lbs and normally wear a size medium shirts. Bought a competing (cheaper) product and had to return it after a week because it didnt work (sound cut out repeatedly). Keeps says controller has been disconnected, and when it does connect it drifts down. Bought for use on 18" bike. Also easy to store. once you get them on they are just abit larger.