Why you need ALL IN ONE Power Bank ?

Do you have power bank or we call it portable mobile phone charger ?

Does it all in one power bank ?

what is mean all in one power bank ?

Let me show you ,

5000 MAh Power Bank with USB-C Cable ,It has Micro Cable or Lightning Cable and has AC plug ,could charge the power bank from the Wall

Some people go outside for travelling ,they have to take power bank and cable and AC plug ,if they miss one of them ,Their mobile phone cannot be charged ,HELOIDEO company helps them to solve this problem 

But if you have this all in one power bank ,you just need take one ,donot worried about if you forget to take the AC plug or charging cable ,it is very convenient