ELSA Revelator IR controlled <a href="https://en.wikipedia.org/wiki/LCD_shutter_glasses" class="extiw" title="en:LCD shutter glasses">LCD shutter glasses</a> for NVidia based graphic cards.
<a href="//commons.wikimedia.org/wiki/User:Afrank99" title="User:Afrank99">Afrank99</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>