Personal Breathalyzer Portable Alcohol Breath Tester with 5 Mouthpieces

EASY OPERATION- Simply power on the breathalyzer and begin testing in seconds. RD900 makes it easy to measure a person's blood alcohol content - quickly, simply and with a high level of accuracy. USB RECHARGEABLE-breathalyzer can be charged through your PC, power bank or car charger. It works for up to 100x after a full charge. BUILT-IN MEMORY- This convenient and practical test flashback memory saves the last 9 BAC readings for later reference. EXTRA MOUTHPIESES- Includes 5 additional mouthpieces, making it easy and sanitary for your friends and family to test.