Keyboard Features:1.Two-way folding design， portable for convenient carry.2.Automatic power On/Off design， Easy to operate 3.Ideal 64-key layout， completely solve folding keyboard defects because of the structures4.Baseboard: Imported aluminum， sand surface and oxidation finished.5.Natural Keyboard design according to Human body engineering， Improve typing feeling6.Universal compatible Bluetooth keyboard for Android/Windows/iOS tablets， smart phones， laptops and desktops.7. Press "Fn+C" to achieve pairing process，Fast and easy.Bluetooth Keyboard Pairing Step1: Turn on the power toggle switch. The state indicator light willbe on for 10 seconds， and then the light will go off.Step2: Press on��FN+C��button together on keyboard， the indicatorlight will be blinking.Step3: Turn on Bluetooth setting in your device， your device willautomatically find ��Bluetooth Keyboard3.0��， then connect it.Step4: Device showed Bluetooth had connected， keyboard stateindicator light will turn off. Battery*The long-lasting rechargeable battery can service you for severalweeks.* With no memory effect， the lithium battery can be charged at anytime.*In order to extend service life， we recommend you turn thekeyboard off when there is long time with no interactive. Special Keys Description:Long press Fn and combination with F1-F12 and insert keys to theshift multimedia keys，and mainly be used in the operation of And roid system multimedia. Fn+F-keys(the same color as Fn)provide shortcuts to useful functions， first press and hold theFN key; second， press the F-key you want to use. Charge the batteries Turn on the Bluetooth keyboard Battery Status light green: the battery has an adequate charge. Battery Status light red: recharge the battery. Go to the follow step: 1.Plugs the Micro-USB charging cable into the keyboard 2.Plug the USB port on a computer or power adapter. 3.Charge for 1 to 3 hours. Or until the Battery status light turns off.Item details:1. Bluetooth 3.0 interface standard2. Operating Distance to 10 meters3. Modulation system: GFSK4. Operation Voltage:3.0-4.2V5. Operating current: <2.5mA6. Standby Current:<0.3mA7. Sleeping Current:<40uA8. Charging Current�� 200mA9. Standby Time:>218 days10. Charging Time:<2 hours11. Lithium Battery Capacity:210mA12. Uninterrupted Working Time:84 hours13. Lithium Battery Life:3 years14. Lithium Battery Specification:3.0*25*35mm15. Key Strength:60��10g16. Key life:3 million strokes17. Operating Temperature:-10 - +55 C18. Keyboard Open size : 251.7*89.6*6.6mm Folded size : 146.5*89.6*16.9mmPackage Contents:1 x Keyboard1 x USB charging cable1 x Leather CoverSpecial Note:1.Universal Bluetooth keyboard， after connecting the Bluetooth， need press Fn+ related system key to related Operation system， or the Bluetooth keyboard function will be invalid.2. The next time use the Bluetooth keyboard， open the left and right key area， and then press any key to realize automatic connecting Bluetooth.