iogear GPEN300 is a mobile digital pen and flash drive that allows you to take handwritten notes, store them on the device, and transfer them to your computer for editing and sharing. It also functions as a regular mouse when connected to a computer. The device features a 1GB flash drive, a rechargeable battery, and a pressure-sensitive pen tip that allows for natural handwriting. Additionally, it comes with MyScript Notes software for converting handwritten notes to text.