Awinner Active Pen,Fine Point Precision Stylus Pen for Surface, iPhone, Samsung, Android, and Most Touchscreens and Smartphones (Black) ****Please note that it is not used on iPad Air 2, iPad mini 4 and iPad pro****** 2.3mm fine point stylus with a durable thermoplastic tip, Flexible ultra fine tip, fast and smooth, writing experience more realistic. Works with the top apps : DotPen works works with any app, including popular apps such as ZoomNotes, Evernote, Paper by FiftyThree, ProCreate, and many more. Active sensing technology, no additional receiver or a Bluetooth device, turn the power can be used Standard USB interface can be realized at any time, the charging time can be used continuously for up to 12 hours Built to last : Awinner Pen is made of precision CNC machined anodized aluminum alloy with a durable soft-touch rubber writing grip.