Generic Stylus Pen For Apple Android and Windows ScreenParameters Function: Painting, writing, notes, touch Charging time: 1 hour Working time: 8 10 hours Compatible use: for Android phones, for Apple phones, for ipad Pro, all brands of flat panel capacitive screen devices Material: pen body aluminum (pure copper pen tip, pen tip with protective film does not hurt the screen) Effective distance: 1. 6mm from the pen Working time: 8 10 hours Power Supply: USB charging Battery: Rechargeable Battery(Built in)