Features: 1. Brand new, high quality back cover made entirely of metal. 2. The non-slip brushed metal keyboard provides an elegant feel. 3. Portable and extremely thin, convenient to take with you when traveling or business trip. 4. Compatible with smartphone, pad, laptop and desktop computer. 5. Adopt Broadcom Bluetooth 3.0 with stable performance. 6. With equipment designed for an IOS tablet, this product is designed for Windows, Android, and IOS. Press FnAndroid, FnWindows or FnIOS to switch system modes. 7. Lightweight and quiet typing on the keyboard, waterproof and dustproof. 8. Scissor keyboard, fast typing and excellent hand feel. 9. Microdisplay, convenient charging. 10. Adopt energy-saving sleep mode keyboard. . PORTABLE AND ULTRA-SLIM BLUETOOTH KEYBOARD Technical data: Working distance: 10 m System: for Windows, for Android and for IOS Operating Voltage: 3-5 V Operating Current: Standby Current: 0,3-0,5 mA Sleep mode current: Charging current: 100 mA Charging time: 4 hours Fixed working time: 40 hours Standby time: 60 days Lithium battery life: 3 years Keyboard lifetime: about 5 million times Operating temperature: -10-55 Black color Size: approx. 20*12.5* cm /7.87*4.92*0.2in Use the tutorial: 1. Turn on the button in the lower right corner of the Bluetooth keyboard. The keyboard will start when the blue light comes on. 2. Open the service, run Settings - Turn on wireless connectivity and network - Turn on Bluetooth - Search for devices nearby - Match to Bluetooth keyboard. 3. Display your device screen Bluetooth Match app, enter your Bluetooth XXXX password to match. Enter the number on the screen on your Bluetooth keyboard and press Enter. List of packages: 1 * Bluetooth keyboard . PORTABLE AND ULTRA-SLIM BLUETOOTH KEYBOARD