"Attaches magnetically enter standby intelligently One second switch one click turn on. Unnecessary to connect to bluetooth or app Tilt and bold ruction tilt and pressure sensitivity Support for palm rejection Better battery life. Built-in 80mAh lithium battery, charging for one hour, using for 8 hours Pen length: 172mm NW: 11.6G Pen diameter: 8.9mm Diameter: 10.7mm Magnetic wire length: 197.6mm Charging method: Magnetic charging"