Compatible with smartphones and tablets about 4-7.9 inches. ※Depending on the shape of the case installed, you may not be able to use it. Stand height adjustable from 3.7 to 5.3 inches (9.5 to 13.5 cm). By adjusting the movable parts, you can enjoy watching videos at your preferred angle. Keeps your device securely in place, prevents slipping, and prevents falling. Compact storage and easy to carry.