This Philips SHP 1900 is one of the headphones it work better for any system. It can use for any electronic device like computer, laptop ipod mobiles etc. It is a usefull thing but it also have some negative points.This philips shp 1900 headphones will not support to some devices and some times the voice may not clear by this headphones, when we connect this headphones to some mobiles the headphones will not support and the phone may get hanged but this headphones is one of the best devices.I loved it but I hate it