Combination/Permutation Formula

Howdy!

Trying to come up with all possible combinations/permutations for testing a new product. Below are the twelve variable names and values (I've limited the possible values to two or three for ease of use). What formula can I use to generate ALL the possible combinations of the variables below?

Thanks for any help you can provide. This is probably easy for someone smart. That someone is not me




Category Possible Values

Voltage: 12v 48v
Res: D1 CIF
BR: 2M 768 128
FR: 30 10 1
#Cam: 10 4 1
Audio: 10 1 0
GPS: DB9 LCD LED
J1939: ON OFF
PW: ON OFF
SDT: HIGH LOW
IGN: HIGH LOW
REC: HIGH LOW