This desktop calculator automatically powers off after 10 minutes of inactivity to save battery, no manual power button. It features a smooth, metallic vacuum-plated surface for a polished, professional look. Designed for steady, comfortable desktop use, it has an ergonomic layout with large, responsive buttons that make typing easy. The 12-digit large high-definition display is clear and easy to read, perfect for long calculations at home, in the office, in the classroom. It also makes a thoughtful gift for students, teachers, professionals thanks to its refined design, reliable performance, quality build. Available colors: Electroplated Pink, Electroplated White, Green.