Smart Paper Notebook with Pen Loop, Cards Holder, Dot-coded Printed Pages Hand Writing Compatible with Ophaya Pro+ App Color:Gray providing up to 5 hours

providing up to 5 hours of continuous play

Cards Holder:  4 card holders for sorting

some notes become obsolete while others remain relevant

fostering linguistic dexterity and promoting proficiency in a second language

and user manual—designed to go paperless

Smart Paper Notebook with Pen Loop, Cards Holder, Dot-coded Printed Pages Hand Writing Compatible with Ophaya Pro+ App Color:Gray providing up to 5 hoursSmart Paper Leather Cover Notebook with Pen Loop, Cards Holder, Dot coded Printed Pages Hand Writing Compatible with Ophaya Pro+ App Cover: PU Leather cover, black&gray color Cards Holder: 4 card holders for sorting Pen Holder 120pages Dot coded printed paper inside(can be replenished with refill paper)