Pen cap can be used even if the product is not in use Function: Draw, write, take notes, make contact Clip for attaching to tablet case Pure copper pen tip with protective film to prevent screen damage Compatible with Android phones, smartphones, and various capacitive touchscreen tablets Effective distance: 1.6mm from the screen Working time: 8-10 hours Standard accessories: USB charger Battery specification: 0.518W, 3.7V, 140mAh Product weight: 26g Light indication: Press the button to turn on LED blue light for use; press again to turn off. LED red light indicates charging; LED light turns off when battery is fully charged Color: White Material: Metal Size: 1.45 x 8.9 x 145mm Package Contents: 1 x Stylus Pen 1 x Micro-USB Charging Cable Note: Only the items listed above are included. Other products are not included. Note: Lighting and display differences may cause slight variations in color. Measurement error allowance: +/- 1-3cm