Magnetic smart sensing, automatically enter sleep mode once turned off, more power-savingUltra-thin and portable, the keyboard is only 4 mm and 2.2 inches wide thick when it is unfolded. Fits easily into your backpack and pocketAluminum alloy case and ABS key, brings you with a comfortable and precise keystroke.Supports three main operating systems iOS, Android and WindowsnbspBuilt-in powerful 380mAhnbsp battery, a 3 hours fully charge will give you up to 45 days continuous using time and 90 days standby timeBuilt-in bracket for securing and supporting your device from an ideal viewing angleKeep more than 85 of the desktop keyboard typing space, providing you with the same fast, natural typing experienceSpecificationMaterial Aluminum alloy ABSnbspBluetooth version V3.0Control distance About 10 metersnbspBattery capacity 380mAhnbspCharging time lt3 hoursnbspWorking time 3545 hoursnbspStandby time About 90 daysnbspFoldable size 8.92.20.63 inchesExpand size 8.96.620.16 inchesnbspCompatible withnbspAll the tablets and smartphone support with Bluetooth 3.0