Feature:1. For Surface: This stylus pen is specially designed for surface devices, strong compatibility meets your needs.2. Palm Rejection: This for surface stylus features intelligent identification and palm rejection, providing accurate control.3. Shortcut Key: This for surface stylus pen is designed with shortcut key which allows you to customize via Ink setting.4. 4096 Pressure: This stylus for surface adopts professional 4096 pressure level that provide unique painting experience and quick response with no delay.5. 90mAh Battery: This for surface pen is equipped with 90mAh battery which can last for 70 hours.Specification:Item Type: For Surface StylusMaterial: ABSProduct Model: C582SConnection Mode: BTBattery Type: Lithium BatteryBattery Capacity: 90mAh (Included)Limit Voltage: 3.7VOperating Temperature: 0 to 35Charging Time: 1 HourWorking Hours: 70 Hours.Package List:1 xFor Surface Stylus4 x Stylus Tip1 x Charging Cable1 x User Manual1 x Tip Box