Parameter functions: painting, writing, note taking, touch Charging time: 1 hour Working time: 8-10 hours Compatible applications: for Android phones, phones, flat panel capacitive screen devices of Effective distance: 1.6mm from pen Standard accessories: USB charger Battery Specification: 0.518wh 3.7V 140mAh Size: diameter pen 1.45MM x pen 9mm x total length 175mm Light introduction: press the button once, the LED is blue and bright, and you can use it; Press the button again to turn off the light and the LED light goes out; When charging, the LED red light is on, and when the battery is fully , the LED light is off or the green light is on. Colour:White Material:aluminum Package Contents: 1 x Touch Pen 1 x USB Cable Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.