Lenovo USI Pen for select Yoga, IdeaPad laptops GX81B10212

Overview
Lenovo USI Pen is great for extended notetaking and writing, fine art or graphic design. The pen with USI protocol supported Chrome OS and provides an industry-leading 4096 levels of pressure sensitivity for natural writing and sketching, along with a 150 days battery life based on 2 hours in active use daily.