VicTake Keychain Breathalyzer Portable Keyring Breath Alcohol Tester, Black Type: Alcohol Screening Age: All Ecological: Organic Features: Semi-conductor Sensor Technology It delivers accurate and reliable result, which is an affordable and convenient way to test your blood alcohol content after drinking. Keychain Design It is small and lightweight, only weighing 0.92oz so you can put it into a purse, pocket or attach it to your key ring for easy storage. Fold-out Mouthpiece With unique folding mouthpiece design, you can slide back down for easy storage.Furthermore, the fold-out mouthpiece can segregate external air, gases, andfumes to improve the accuracy of the result. Designed for Every Special One Do not worry about the unit that differs from your country. You can shift the unit from %BAC,‰BAC to mg/L for different requirements. An Accurate Reference for Drivers afterDrinking Backlit LCD screen is for easy read...