TJ_IT_GADGET Cat Eyes Design Power Bank 10000mAh – OS
Ultra-Slim Cute Cat Eye Power Bank 10000mAh with Portable External Battery Pack Type C 5V 2.1A
The eyes indicate the battery voltage，fully open for 100%，three quarters for 75%，half for 50%，quarter for 25%. When your power bank looks at you ferociously, kindly charge it.
It is ultra slim with around the thickness of 13mm,it won’t take up much space.