You use the HTC Vive Controller in combination with the HTC Vive virtual reality glasses. This wireless controller lets you look for interactions with objects in the virtual world. The sensors on the HTC Vive continuously measure where the controller is located. In this way, the movements of the controller are virtually simulated down to the millimeter. Use the wrist strap on the controller or you might lose the controller during an exciting virtual reality session. The Vive controller is completely wireless and can be charged using the included USB charger and micro USB charging cable.Note: These controllers are version 1.0. They won't work with lighthouse 2.0 sensors from the Vive Pro.