CC machines?

I'm not sure if I'm posting this in the right section but I was wondering if anyone here knows which mobile credit card machines are good. My sister needs it for her business. Thank you!

Hey! My aunt uses Worldpay for her business. She said she hasn't encountered any problems yet.

How about TSYS? I read a lot about them online and they have good reviews too.. Do you know someone that uses their service?

there is a lot of payment gateways that you can used in your sister business

google " payment gateway " and the result will come upfront of you

regards