Simply double-click the cover button continuously and it will open or close. Turn off and turn on“Sleep mode” automatically after 8-10 minutes to save power. USB-C is fast and easy to charge. Continuous work 6-10 hours, charge 90 minutes, standby time 90 days Smooth cylinder pen body, one side flat, comfortable grip, not easy to roll. Just double-click the pen cap button in a row, and the stylus is free to operate your iPad.