Warranty Service: Online Technical Support. Please contact us if you have any problems about the iPad Pro Stylus, we will respond to your issue within 24 hours.12 Months Warranty.?Note?iPad Pro Pencil comes with three spare pen tips. Palm Rejection and Magnetic Design: The active Stylus Pencil with palm rejection,You can put your hand comfortably on the screen when drawing or writing, no need to wear gloves for more convenient writing or drawing. The Stylus iPad Pro Pen is magnetically designed, so it won't roll and be lost while resting, making it more convenient to carry and organize. Precise and Smooth:1.5mm stylus pen tip can replace your finger to execute finer instructions, iPad mini Stylus Pen easy to install and tear off the tips on your Stylus Pencil for iPad mini without any tool. No lag/offset/breaking point! Compared with the ordinary iPad Air Stylus Pencil, it has higher sensitivity, more accurate signal, more comfortable hand. Not easy to break!?Note?The iPad Air Stylus Pen no pressure-sensitive design. Easy to Use and Extra Long Standby: No need to install Bluetooth or Apps, just turn on this Stylus Pen for iPad Pro by simply touching the cap button; iPad Pro Stylus pen for touch screen will automatically turn in "Sleep Mode" after idle for 6 minutes to save power. Max 20 hours continuous working time, 90 mins charging time, 180 days standby time. Compatible:The iPad Pencil supports for iPad series 2018-2022 model: iPad 10th/9th/8th/7th/6th Gen,iPad Pro 11 inches/12.9 inches, iPad mini 5th/6th Gen, iPad Air 3rd/4th/5th Gen. Please confirm your devices before you place order the iPad Pen, other model is invalid.