General Specification:

Brand: Xiaomi ZMI
Model: QB820
Capacity: 20000mAh
Product Weight: 405g
Dimensions: 160.4*81.4*21mm 
 
Technical Parameters:

Battery Type: Lithium batteries 
Input: 5-20V Max 45W
Output: MAX 45W
            USB-C 5-20V MAX 40W
            USB-A 2*5V 2.4A, 9V 2.4A
            12V 1.5A MAX 18W
 
Package  Included:

1 * Xiaomi ZMI QB820 Power Bank
1 * Micro&Type-c 2 in 1 Cable