Lenovo Active Pen for Miix Yoga 900s, Yoga 720 and Flex 15
Model no.: 5T70J33309
Include : Lenovo Active Pen, USB Pen Holder, AAAA battery
Manual :
https://www.lenovo.com/us/en/pdf/QSG-Active-Pen-QSG-SP40K32886.pdf&ved=2ahUKEwiumLHAv5TrAhWqy4sBHU9tD3YQFjAGegQIAxAB&usg=AOvVaw2voOVxe93fA3i940ptSse9&cshid=1597195527471