A handy little accessory! This pen stores all your movement and transcribed by computer. Very useful for drawing, simplify, add little notes in documents or to a digital manuscript. Also the handwriting recognition software allows transcription of the manuscript in typescript if you prefer this form or wish edit your notes. Autonomy is good; only flaw is the lack of Bluetooth on some desktop pc or laptop which prevents the same work directly with the computer, It would have been better to integrate a wireless fashion ... but this is anecdotal!