Credit card sized, seems pretty great compared to prices I've paid in the past for bigger less powerful ones.
Manufacturer Part No: BHR4412GL
Brand: Xiaomi
Product Type: 3 Ultra Compact
Product Family: 10000mAh
Shipping Weight: 0.3 kg
PB Part No: BAPMIX28965
Product Model: Mi Power Bank
Warranty: 12 months *
finally PD input!