1、Ultra‑thin design, simple and stylish. Bluetooth 3.0 technology provides cable‑free and interference‑free long‑distance connection, and the working distance is about 10meter 2、Ergonomic designed best key spacing, you can type content quickly and smoothly, provide users with a pleasant typing experience, for Windows shortcuts, media control keys and touchpad can achieve accurate control and navigation 3、Rechargeable wireless keyboard is easy to charge via USB cable, no need to replace the battery 4、The keyboard is compatible with three mainstream systems of for Windows/iOS/Android, and supports smart phones and tablets at the same time 5、Come with colorful backlight, support switch backlight, more convenient to use at night Item Type: Bluetooth Keyboard Material: ABS Connection: Bluetooth 3.0 Effective Working Distance: Approx. 10meter / 32.8ft Battery: 180mah lithium battery (built-in battery) Charging Time: ≤2 Hours Applicable System: For Windows/iOS/Android Size: Length: Approx. 201mm / 7.9in, Width: Approx. 127mm / 5inHow to Use: 1. Turn on the power, connect to Bluetooth, you can use it. 1 x Bluetooth Keyboard