Functioning distance of up to 33 feet away from adapter. Input switch with 2 input protocol modes for extra versatility. Direct input (standard hid protocol) supports 4 controllers at the same time. Xinput (xbox 360 controller protocol) supports one controller per individual adapter. All buttons (except for power button) shoulder control buttons analog sticks and their clicking tops are fully functional. Compatible with Windows 98 xp Vista and Windows 7 and Windows 8(32 bit and 64 bit versions). Operation notes - how to set the turbo function? To set turbo for individual buttons press and hold the home button and the button you wish to set turbo for. To remove the setting for that specific button press and hold the home button and the button you previously set turbo for. To clear all turbo settings for all buttons quickly press the home button twice within half of a second. If the input switch is set to the direct input mode the controllers are recognized as standard human interface device. Your controllers can be calibreviewed at the windows gamepad setup screen. Up to four controllers can be recognized by a single adapter while in this mode. Setting the switch to xinput mode will make it possible to fool certain pc games which lock out proper input modes from the user unless an xbox controller is attached (for a list of these games check Wikipedia). While in xinput mode vibration feedback is available. The drawback is that while in this mode only one controller can be recognized by the adapter. If you want to map your buttons to keyboard keys look for joy2key software online.