Personal Digital Breathalyzer - This device helps you check your blood alcohol level after a night out drinking to make sure you can drive safely or if you need to take public transport. Its a great addition to a young drivers car. Quick and Highly Accurate Results - Designed using a system of super-sensitive solid-state sensors, our portable breathalyzer lets you know if youre over the legal BAC and sounds an automatic alarm if youre over 0.05% BAC. Compact and Portable Design, FREE Carry Bag Included - Small enough to be stored in your car, purse, backpack or briefcase, our portable breathalyzer makes it easier for you to test yourself before traveling, getting in a car, meeting people at work or just taking ahead of your personal goals. Cordless and Battery Powered - This premium breathalyzer uses two AA batteries (not included), allowing you to keep it powered up. voltage and ready to use almost anywhere. Simply replace the batteries as needed for long-lasting support. Its the perfect addition to your European travel kit and the perfect breathalyzer for trips to France