[Stable Bluetooth]: Featured with faster connection speed & unwavering stability, this bluetooth keyboard provides you with noticeable seamless typing experience during use. [3 Devices Switch with A Single Clicking]: Inbuilt Bluetooth 5.1 technology. This keyboard is able to connect to 3 devices at the same time. You can switch between 3 devices with a single key clicking. [Power Saving & Long Battery Life] keyboard turn into Power-saving mode automatically, you just need to click any key or button to wake-up within seconds. No more continually changing the batteries. [Long Connection Distance]: Advanced Bluetooth technology provides a cable-free, clutter-free connection. Long effective operating distance: about 6m (20ft). [Widely Compatibility & Great Service]: Our bluetooth typewriter keyboard compatible with iPad, iPhone, iMac, MacBook, Smartphone, Windows, IOS, Mac OS, Android. Wireless keyboard, suitable for desktops, Chrome-book, PC, Laptop, Computer,Smart TVs and more. It