POWER BANK USB 20000MAH/VA2572 WHITE RIVACASE

Charge up to 4 times faster than using a regular charger!
Support: Power Delivery 20W , Quick Charge (QC 3.0), Huawei FCP&Samsung AFC.

Charge-through function
Connect the portable battery to the power source and your mobile device to the portable battery. Mobile device is charged first. When fully charged, the portable battery will start recharging.