The cover of this notepad is made of high-grade PU leather fabric, the inner pages are 100 sheets of white printed lines of replaceable paper core, the back cover embedded a 8000mah battery, comes with 3 kinds of cell phone interface charging cable, can be charged for all cell phones. It has a wireless charging coil on the front cover, a card case and an invoice holder on the back to ensure convenience and practicality while taking into account the aesthetics and elegance, and the cover can be customized with logos, and supports silkscreen, embossing, hot stamping and other printing methods.