For the full interactive virtual reality experience with the HTC Vive or the HTC Vive Pro VR headset, you'll need the 2018 version of the HTC Vive Controller. It matches the color of the Vive Pro VR headset.
With the Vive controller, you'll use the 24 sensors, a multi-function trackpad, and a dual-stage trigger to play games and interact with the menus. The HD haptic feedback provides a more immersive VR experience. The integrated 960mAh battery is rechargeable.