The AccuPoint Active Stylus from BoxWave was designed to look and feel just like a real pen. Unlike standard styluses, the AccuPoint Active Stylus emits small electronic pulses to make contact with the screen, allowing you to write with a much finer tip, and a much more natural pressure and writing position. Simply touch the ultra accurate 2mm tip to your Transformer Book T100 touchscreen with the same pressure you would use pen to paper, and draw, write, tap and swipe for up to 12 hours. When its time to recharge, simply plug your AccuPoint Active Stylus into the included Micro USB cable. Make the switch from pen and paper to stylus and Transformer Book T100 with the AccuPoint Active Stylus : A Stylus that looks and feels just like a real pen.