The Inkling is the latest new device from Wacom, the industry leader in digital pen tablets for computers. It is a device that is meant to take you from the traditional, freehand sketching and manually scanning that sketch in to a computer, to directly sketching your image to a file on a USB drive and importing that file into a computer.
The Inkling comes with the Inkling Digital Sketch Pen, receiver, charging case, USB cable, and four spare ink cartridges. It is all very compact with everything fitting into the charging case so you can easily take it with you wherever you go. Even the software is contained on the drive.
The main part of the Inkling system is the Inkling digital sketch pen and the Inkling receiver. Both contain batteries that need to be charged periodically and generally take less than three hours to fully charge. The pen uses a standard mini ballpoint ink refill with a 1mm ball size. Currently these refills can be purchased from the Autopoint catalog, but I would suspect any equivalent refill would work. The Inkling also works with any kind of paper to a maximum A4 (8.27" x 11.69" or 210 x 297 mm) paper size. One thing to keep in mind is that there is a limited performance zone that goes from where the receiver clips on to the paper to where the connection between the pen and receiver is considered reliable and that is a 2 cm (0.8) inch space below the receiver.
Once everything is all charged up you take your receiver and clip it to a sheet(s) of paper or clip it to the pages in a notebook or drawing pad. A new sketch file is created each time the clip is attached. The standard position for the clip is at the top of the page, but you can clip it anywhere that works for you. The orientation is based on where the clip is placed. Once you clip it you want to keep it in place until you are done as otherwise either the strokes will be misaligned or a completely new sketch file will be created.