1、Active sensing technology, no need for additional receivers or Bluetooth devices, turn on the power to use. 2、The standard USB interface allows for charging at any time, and can be used continuously for up to 12 hours. 3、Smooth Touch - The touch pen doesn't conflict with screen, which ensures the smoothness and stability of touch with no stuck or cut. 4、High Sensitivity - High sensitivity offers a more precise touch for more convenient operation. 5、Comfortable Grasp Feeling - The ergonomic designed penholder gives you a comfortable grasp feeling. No pain or fatigue after long time grasping. Features: 1. Active sensing technology, no need for additional receivers or Bluetooth devices, turn on the power to use. 2. The standard USB interface allows for charging at any time, and can be used continuously for up to 12 hours. 3. Smooth Touch - The touch pen doesn't conflict with screen, which ensures the smoothness and stability of touch with no stuck or cut. 4. High Sensitivity - High sensitivity offers a more precise touch for more convenient operation. 5. Comfortable Grasp Feeling - The ergonomic designed penholder gives you a comfortable grasp feeling. No pain or fatigue after long time grasping. 6. Light weight, easy to carry. Specification: Material: Aluminum Alloy Working Time: 12 hours Nib: <1.5MM Charging Port: USB Port Battery Capacity: 140mAh Color: Black, Rose Gold, Red, Silver(optional) Package List: 1 * Stylus 1 * Charging Cable Instructions: Press the blue button once, the LED blue light is on, you can use it; press the blue button again to turn off the light, the LED light goes out; when charging, the LED red light is on, and the charging is completed, the LED green light is on.