Touchpad Function: With which you can control your device without a mouse 🖱 Foldable Design: Extremely thin and foldable keyboard 👌 Exquisite Workmanship: Aircraft grade aluminum for excellent stiffness 💪 Compatible with 3 major operating system: iOS / Windows/ Android 💻 Folding size: 5.98" x3.82" x0.71" 📐 Rechargeable Battery: Up to 560 hours 🔋