Universal Active Stylus Pen for Android/IOS/Windows with Extra nib Brand Name: KSENTRY/OEM Material: Aluminum Alloy Use: Mobile phone, Tablet, iPad Use for: Android/IOS/Windows Product: Capacitive Active Stylus Pen Function: Touch Screen Battery: 140 mAh Dimension: 165*8.9mm Charging Port: USB to DC Cable Charging Time: 2 Hours Working Time: 12 Hours