Bottom-Line-Up-Front (BLUF) To connect a modern children’s reading pen to a computer you typically use the USB-C cable that comes…

BLUF Bottom line: Before buying a children’s reading pen (like Toyvao’s OID reading pen), verify that the book is OID-coded…

BLUF: OID pens require special books because the pens read invisible, pre-printed OID markers embedded in each page; those markers…