SIMPLIFY ONSCREEN NAVIGATION: Use the pen to write or draw onscreen or interact with your touch applications. Integrated pressure sensors help you control the width of your drawn lines.EASY TO USE: Once in range, your device[1] detects the pen and cues you where to place it onscreen. Erase, highlight, and click on your content with the two convenient side buttons.BATTERY AND POWER: Battery type 1 batteryTechnical notes Tip Diameter: 1 mm, 2 Pressure Sensitivity: Yes (2048 levels) Tilt Operation: Yes Palm Rejection: Yes Hover Reading Height: 8mmMinimum System RequirementsWindows 8.1For 240 G6,for Elite x2 1012 G1,for Elite x2 1012 G2,for EliteBook 1040 G4for EliteBook x360 1020 G2,for EliteBook x360 1030 G2,for Pro x2 612 G2for ProBook x360 11 G1,for ProBook x360 11 G2 ,for ProBook x360 11 G3,for ProBook x360 11 G4,for ProBook x360 440 G1For Sprout pro G2Colour:greyMaterial:metal+plasticPackage Contents:1 x Active Tablet Stylus Pen1 x USB CableOnly the above package content, other products are not included.Note: Light reflection 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.