Attaches your smartphone to the Xbox Series X controller. Use with the Xbox App to integrate second screen features with your console. Browse the internet to access walkthroughs, gameplay videos, cheat codes, and more. Fully adjustable viewing angle/tighten knobs to lock position. Easily attaches to the controller without interfering with the ports or buttons. Access all second screen content without dropping your controller. Four swappable silicone thumbcaps increase tactile response and comfort during long play sessions.