Features:brand new and high quality Support system: three systems, AND-ROID, for WINDOWS Typing on your phone/tablet like a professional: Typing on a tablet or phone is painful? Now enjoy the experience of typing on a computer on a tablet and phone. Whether it's office work, writing emails, sending messages or even writing your outdated novels, use this multi-device keyboard to do it on your phone/tablet. With a sturdy base design, the phone and tablet can be put together, and the convenient angle provides a comfortable typing experience. Work , anywhere: No need to bring your laptop. Just connect your mobile phone/tablet to the Bluetooth-compatible keyboard, you can work , anywhere. The built-in rechargeable battery can be used continuously for up to 80 hours, and it can be standby for 3 months on a single charge, so it is ready at any for time. Easy to install: To connect, just press Fn + C for 3 seconds, you can connect to the keyboard in pairing mode, and connect your favorite Bluetooth-compatible device on one of the two available channels. Quickly switch devices between channels through the channel switch. Mini Typing Fatigue: We designed the slim and compact keyboard with comfort and performance in mind. The rectangular scissor-shaped keys allow you to type comfortably for a long for time, while ensuring high responsiveness and silent clicks. Specifications:Button life: more than 5 million timesBattery: 3.7V 180MAH lithium batteryProduct size: 291X160X159mm/11.41x6.29x6.25inchSupport system: three systems , AND-ROID, for WINDOWSMaterial: ABS plasticSupport wireless/Bluetooth-compatible 3.0Working current/voltage 0.25mA 3.7V Note:1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:1xMobile Phone External Keyboard