I bought these to replace a set of Treblab XR500s that finally gave up after 2 years of daily use at work. The perfect indoor trainer. Bluetooth is easy to pair, and remembers multiple devices automatically. Love the idea of these shoes, but they are not really wide shoes. Add a bit of big toe arthritis and its almost impossible to walk without excruciating pain. You do hear all the bass lines down to 20hz which is what I want in a pair of headphones. Comes with a charger cord. Amo que tengas ruedas. I am not able to get it to work with a KVM switch. I did go up half a size cause I?ll be wearing heavier socks but like so much am also ordering the 6 to wear with normal ones!