Lightweight and good bass. They have the stereo reversed ....! To have the stereo correctly, you have to wear them reversed and it's a bit uncomfortable like that. Update ... I finally fixed them by removing the bone and placing them correctly. During use, the cable from the left speaker got cut and I had to solder it again, but it seems like the volume has decreased. They are cheaply made but very easy to repair. For their price, with detachable cable and very lightweight, it's a good purchase.