Infrared Receiver: Receive signal between 1.5 and 15 feet</br>NVIDIA Backlit Button: 3D Vision on/off</br>USB 2.0 Mini-B: Connect to the PC for enabling 3D Vision</br>VESA Stereo Cable Port: For use with DLP HDTVs and Quadro GPUs only</br></br>Product Description</br></br>NVIDIA 942-11431-0007-001 3D Vision 2 Wireless Glasses Kit. Infrared Receiver: Receive signal between 1.5 and 15 feet.</br><br/>http://www.amazon.com/gp/product/B005XULTG6