Wacom Inkling
Wacom has traditionally been an innovator of digital medium interfaces, toolsets, and technologies. The Inkling is no exception. Inkling combines ink on paper sketching with digital editing by recording and saving the user's sketch to a digital file. Simply clip the small receiver to the top of a sheet of paper and begin drawing. The rechargeable ink tipped pen sends pressure and tilt information to the receiver via IR signals. Ultrasonic sound waves are used to triangulate the pen tips X and Y exact position.
The pen, receiver and extra ink nibs come in a foldable charging case that efficiently holds all the essentials in a convenient mobile kit.