USB charging port You can use a computer, power bank or charging head to charge this pen. LED red light on charge, full charge when the light off or green light. Charge for two hour, can be used for 12-15 hours.
Easy to use Press the switch, the blue light is on, you can use it without connecting to Bluetooth. Press again, the light is off, the pen cannot be used Intelligent power saving, automatic power off for 30 minutes