Thank you for viewing. We are offering an electronic organizer, which is in increasing demand due to changes in the educational curriculum, at about half the purchase price. It's the electronic organizer PW-AC 900. Serial number 9M006607 Sharp Corporation Of course, you can also use a microSD card. I gave it as a gift, but I haven't used it, so it's in very good condition. I didn't use it regularly, so it's like new. Thank you. Dictionary