just purchased this headphone without knowing that my PC doesn't have 3 USB port. I have to use 1 port for keyboard, 1 for mouse and that all I got. so no where to put this headphones so I bought a new one with 3.55 Zach and I am thoroughly using it . I don't need two headphones on me so I am selling this headphone almost half from the actual price . interested and serious ones - 9849424703(viber) or call .