Talk something about Xiaomi 10000mAH Power Bank weight

Xiaomi had praduct a new power bank—Xiaomi 10000mAH Power Bank.Maybe,the weight of the power bank may be appeal a hoted discussion. Xiaomi 10000mAH Power Bank weight is 450g,400g,350g,or 300g? I will tell you,No.Its just 207g.
           
Here are some Description of the Xiaomi 10000mAH Power Bank
Battery capacity: 3.6V 10000mAh
Interface: Micro USB(input), USB(output)
Size:97.3x83x27.2mm
Input: 2.0A(TYP) DC 5V
Output: 2.1A DC 5.1V
Charging time: about 5.5hours with 5V/2A charger
Charge temperature: 0℃-45℃
Discharge temperature: -20℃~+60℃
Weight: 207g
           
So what about the Xiaomi 10000mAH Power Bank Price?The Price of the Xiaomi 10000mAH Power Bank just US$21.99.This product cost really high.If you want to buy a power bank,Xiaomi 10000mAH Power Bank is a good choose.