Stylus Pen IBIOPEN Sense Pencil V2 Includes replacement tip for iphone 8, iphone X, ipad air, ipad pro, Android, Samsung S8, and Windows Tablets (WHITE) The tip is only 1.9mm and charging stand adds texture Don't need to connect Bluetooth or download any app, just press the switch and you can use it on mobile phones or PAD. The stylus is fully charged and continuously used for 8 to 9 hours. When not in use, it will stand by for one minute and shut itself down. The tip of the stylus can be rotated to adjust the signal and can be used on any mobile phone or PAD. The tip of the pen becomes longer as the signal is weakened, and the tip of the pen becomes shorter and the signal is enhanced.