Features: brand new and high quality Features & Benefits. With Bluetooth-compatible connectivity. Natural sketching writing and painting, tilt sensing, 4096 levels of pressure sensitivity, cone shape pen tip and zero stroke, all designed for natural writing, effective sketching and painting with no lag. Along with a 400 days battery life based on the test Active use 3hrs/day, Sleep 21hrs/day, Use 5 days/week. Tail button click 10 times/day. Take a short-cut in your work, seamlessly switch between different applications with one of three configurable shortcut buttons on the side and top of the pen, page through presentations, to be customized through for Windows Pen feature and Pen App. Specifications: Applicable model: for yoga 520 530 720 C730 C740 920 C930 C940 14C C640 370 460 Material: aluminum alloy + anodizing process Color : for Grey Function: pressure sensitive pen Pressure level: 4096 Battery: built-in rechargeable Size: approx. 15.3x1x1cm/6.02x0.39x0.39in Package Includes: 1PC x Stylus Pen note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!