A keyboard can quickly connect and switch between two devices at the same time, which is convenient for office and various typing. - With its own energy-saving sleep mode, the keyboard will automatically shut down when there is no operation for 10 minutes. When you need to use it, just press any key and wait for about 3 seconds to wake up. - It is universal for mobile phones, tablets, and notebooks, suitable for a variety of work environments imaginable, compatible with multiple systems, and easy to connect. - The keyboard adopts key noise reduction design, which greatly reduces the key sound, and quietly taps each character without disturbing people around you. - Scissor foot X structure button, light weight, fast response, short stroke and quick rebound, hands can be in a natural relaxed state, suitable for long-term use. - Features:Name: Bluetooth keyboard - Material: ABS plastic - Support system: IOS, ANDROID, WINNumber of keys: 78Support wireless/Bluetooth: Bluetooth 3.0Keyboard life (number of keystrokes): 5 million times - Response speed: 5 milliseconds - Wireless/Bluetooth transmission distance: 10 meters - Working current/voltage: 0.25 m - A 3.7VBuilt-in battery: yes - Battery type & capacity: soft pack lithium battery 180 m - ACharging time: 2 hours - Use time: 80 hours - Product net weight: 644 grams - Package weight: 885 grams - Product size: 290×160×15MMPacking size: 320×170×25MM