A4 Powerbank portfolio

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A4 Powerbank portfolio

Mobile power capacity: 4000-20000 mAh
Size: A4/ custom
Material: PU
Wireless charging: 5W/10W/15W can be added
U disk: 8G/16G can be added
Lock mode: metal zipper
Notebook: 20 pages /50 pages/others
Packaging: Customizable