The unique patented Tru-Vu Omniscreen Eyesets have been carefully designed to provide you with the most effective and safe light and sound experience. These eye sets use eight blue-tinted white, wide angle LEDs mounted over a silver reflector behind a translucent screen. This disperses the light evenly and protects the LEDs. The LEDs are extremely efficient and last for over 100,000 hours. Because they draw so little power, they also allow for longer battery use. For use with MindAlive Delight Plus, Pro and Alert models.