I am a small business owner who likes to dabble in making Tee shirts for local special events in the area.  I would go to baseball and softball games and parades or festivals and sell my customized tee shirts.  Because I was usually at remote locations I needed to get a Wireless Credit Card Processing machine to accept credit and debit cards from the people who were buying my tee shirts. I had tried to do all an all cash business but a lot people ended up not buying from me because of their lack of cash on hand and usually no ATM machines around for them to access.