Mini portable power bank

Mini portable power bank 【Product size】: 64*92*12mm【YM164】 
[Battery type]: A product polymer batteries
[Product color]:/black/red/blue/
[Product function]: Two-way fast charge/intelligent current protection
[Output parameter]: 5V/2.1A 1A
[Input parameters]: 5V/2.1A
[Overcurrent protection]: Yes