This Titmus 2s Vision Testing Screener is a top-of-the-line device for professionals in the field of ophthalmology. It comes with pre-installed slides that make it easy to use right out of the box. The unit type is a simple and compact design that is easy to handle and operate. The product is made in the United States and comes from a reputable brand known for quality and accuracy. The Titmus 2s Vision Testing Screener is perfect for use in medical and lab settings and is an essential tool for professionals in need of a reliable vision screener. This model has been modified to meet the needs of the modern medical field and is free from any known California Prop 65 warnings. This device is a must-have for anyone in the healthcare, lab, or dental industries.