The BACtrack S35 breathalyzer is one of the smallest, sleekest breathalyzers on the market. Designed State-side with ease of use and style in mind, this tiny breathalyzer harnesses a powerful proprietary sensing technology and a specially tuned algorithm, delivering results with unheard of accuracy at this price point. You'll never believe the comfort and security you feel with this tiny unit in your pocket. Just pull it out, turn it on, and blow into it for five seconds. Never before has a breathalyzer had accurate alcohol sensing technology in a design this fun and affordable. It's tiny size and funky style makes it easy to test yourself and friends discreetly. It takes only a few seconds to analyze the breath sample, and your estimated BAC will display on the cool, Caribbean blue LCD screen. Everyone will want to test themselves whether you're at a party, bar, restaurant, or anywhere else alcohol is consumed. Learn how drinking alcohol affects your Blood Alcohol Content and always make smart, informed decisions. And you can trust the BACtrack S35 Breathalyzer because of BACtrack's history and experience with personal and professional alcohol testers. Don't guesstimate your BAC based on how many drinks you've had or how you think you feel--use a BACtrack S35 and know where you stand.