Resistant, 300D polyester folder with built-in 4,000 mAh external auxiliary battery. Cover especially designed to illuminate the logo. Plenty of storage compartments for business cards, USB sticks, plus a wireless charger/case for smartphones. LED charge indicators and USB output for conventional charging. Including a 20 sheet notepad and a support for mobile devices. The easy access to the charging station via micro USB cable - included- make of this folder the perfect gadget for business and studying. Presented in an elegant black box.