1.Compatible with Windows 98, 2000, ME, XP, NT, Vista OS. 2.no any strews on the shell, beautiful. 1.Compatible with Windows 98, 2000, ME, XP, NT, Vista OS.2.8 directional buttons + 12 fire buttons + 2 analog sticks 3. Turbo, Clear and Auto function4.2 vibration engines, dual vibration 5.no any strews on the shell, beautiful. usb double shock gamepad