This compact keyboard is crafted with a durable combination of metal and Abs materials, ensuring both longevity and a premium feel. Weighing in at just 0.5KG, it's easy to carry in your bag or briefcase, making it the perfect travel companion for your smartphone or tablet. The keyboard features a full 58 keys, including a convenient system switch shortcut key that allows you to effortlessly toggle between Windows, Android, and iOS systems. It's powered by a built-in lithium battery that offers an impressive 60+ days of use on a single charge, and with its Usb charging capability, you'll never be left without power. When not in use, it folds down to a compact 23.85.51.8CM, making it easy to store or transport. The strong compatibility of this set makes it suitable for a wide range of devices, including tablets, laptops, and desktop computers. With a Bluetooth 3.0 wireless connection, you can enjoy a stable signal transmission with an effective range of up to 10 meters.