... system requirements:Work with Windows 98, ME, 2000, XP, Vista and Apple operating systemHow to USE? 1. First of all, the ... .At the same time, press the keyboard keys F9 and F12, and the code indicator will light more than 10 seconds3 . Press ... a computer USB port.(Attention: the distance between the USB receiver and the keyboard in 30 CM on the code, over this ...