The FADEee Smart Pen is a writing pen with ink which fades from paper. It has an inbuilt scanner, voice recorder USB key which holds your scans and recordings. When the ink fades from paper, it can be reused or student workbooks resold, thus saving money and reducing the cost of waste & recycling bills. The FADEee Smart Pen has a long life battery which charges when the USB key is inserted into a laptop or tablet.