iKKO OH300 Lumina Review iKKO’s new budget IEM the OH300 has photochromic glass on the faceplates that change color to protect the internal circuit components from harmful UV rays. They also feature anti-interference capabilities, a 10mm Liquid Crystal dynamic driver, an oxygen-free copper cable, and a built-in audio tuning board. The photochromic color-changing glass protects internal circuit components from harmful UV rays while displaying a captivating blend of aesthetics and function. The uniquely crafted earphones not only deliver good durability … Continue reading iKKO OH300 Lumina Review