Adjustable viewport

"Indoor outdoor privacy & focus guard."
Reduce 90% of outdoor sun glare.

Slide dial to increase/decrease viewport —
Like how old-school camera lenscovers open.

Uses:
Reading, computers, school, classroom tests, office, sports, field & lab work, industrial, travel and home lifestyle.

  • Reduce bright lighting
 • Reduce up to 50% screen heat
 • Reduce device energy spend

Materials:
Frame Plastic — Weigh same amount as sunglasses.