Features: 1.For Bluetooth 3.0 technology can provide cable?free and interference?free connection, working distance is approx. 10meters 2.With for Windows shortcuts, media control keys and touchpad for accurate control and navigation. 3.The best key spacing allows you to enter content quickly and smoothly, providing users with a convenient and quick typing experience 4.Rechargeable wireless keyboard, easy to charge via USB cable, no need to replace the battery 5.The keyboard is compatible with three mainstream systems of for Windows/ iOS / Android at the same time, and supports smart phones and tablets. specification:Item Type: For Bluetooth Keyboard Material: ABS Connection: For Bluetooth 3.0 Effective Working Distance: Approx. 10 meters / 32.8ft Modulation Method: GFSK Battery: 200mah lithium battery Continuous Working Time: 76 hours Charging Time: 2 hours Button Strength: 50-80g Button Life: About 3 million clicks Applicable System: For Windows/iOS/Android PackageList: 1 x Keyboard 1 x Cable 1 x User Manual