Features: Power bank: 8000mAh lithium battery capacity battery voltage: 3.7V ratted watt: 18.5Wh Item name: A5 notebook type: Wired Number of inner pages: 80 sheets 160 pages input: 5V 1A output: 5V 2A digital cable: with /android/type-c interface available for wire power charging function mobile phone rack, mobile bag, cable holder, USB drive holder Material: PU leather colour: Black Package Contents: 1 x Multifunctional rechargeable notebook Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Features: Power bank: 8000mAh lithium battery capacity battery voltage: 3.7V ratted watt: 18.5Wh