"Portable" = a compact, battery powered counting machine, available in either handheld or desktop versions, for light duty use in the field.

"Bill Counter" (aka cash counter, money counter, currency counter) = an 110V AC-powered machine that counts and displays the number of bills provided, regardless of value of the bills.  That is, if 100 quantity of $5.00 bills are added, the count will return "100".  Options may include batch counting, increased loading capacity, and levels of counterfeit detection.

• Compact:  Small footprint desktop design, duty ranges from light commercial to moderate use, 100-250 note capacity.
• Standard:  Moderate footprint desktop design, duty ranges from light commercial to heavy use, 100-250 note capacity.
• Top-Loading:  Desktop design, duty ranges from light commercial to heavy use, 300-500 note capacity.

"Mixed Bill Counter" = a machine that counts and displays the number of bills provided, plus evaluates the value of each bill.  That is, if 100 quantity of $5.00 bills are added, the quantity count will return "100" with a value count of "$500".  If a mix of bills is included, such as 100 x $1 plus 10 x $5 plus 5 x $20, the quantity count will return "115" and the value count will be "$250".