PayPal here is a mobile phone application plus a hardware utility which will help you to read the credit/debit cards. Paypal Here will help sellers to sell products with just a mobile and accept, debit cards/credit cards/check etc.
Process checks without going to the bank. PayPal Here lets you accept check payments of $1,000 or less with a simple scan
As of not it does not support all countries.
You can see the two videos below which will explain this more detailed.
You need to have a internet connection
Available for iPhone/iPad and Android (2.3.3 or higher) devices only
Device must have 3.5 Audio jack support