Parameter functions: painting, writing, note taking, touchCharging time: 1 hourWorking time: 8-10 hoursCompatible applications: for phones, phones, flat panel capacitive screen devices of various Effective distance: 16mm from penStandard accessories: USB chargerBattery Specification: 0518wh 37V 140mAhSize: diameter pen 145MM x pen 9mm x length 175mmLight introduction: press the button once, the LED is blue and , 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 charged, the LED light is off or the green light is on.Colour:WhiteMaterial:aluminumPackage Contents:1 x Touch Pen1 x USB CableOnly the above package content, other products 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.