The Greenwon® Professional Keychain Breathalyzer is a fun way to estimate your BAC when you're on the go.
Simply turn on the breathalyzer, breathe into the mouthpiece, and then get your estimated blood alcohol level!
This breathalyzer should not be used to determine if you are too drunk to drive. If you have consumed any alcohol, do not drive.
The breathalyzer requires 2 triple A (AAA) batteries and they do not come included.
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