$29.99 for AlcoHawk Slim Digital Personal Breathalyzer with Extra Mouthpieces ($67.98 List Price)

After a five-second exhaling breath, the AlcoHawk breathalyzer delivers accurate results in four to five seconds. The one-button design is easy to use, and its ABS impact-resistant exterior protects the device against awkwardly close talkers. An integrated digital screen displays results ranging from 0 to 0.40 blood-alcohol concentration. The 23 included mouthpieces allow users to share the device with multiple friends without spreading germs or lipstick shades that don't complement your outfit.

Quick and accurate results in four to five seconds
23 disposable mouthpieces included
One-button operation
ABS impact-resistant exterior
Warms up in 15–60 seconds or faster if made to do jumping jacks
Electronic airflow sensor ensures deep lung sample for testing
0.00–0.40% blood-alcohol concentration (BAC)
+/- 0.01% at 0.02% BAC sensor accuracy
Semiconductor sensor with two-digit display for accuracy
Operates on two AA batteries (not included)
Dimensions: 5”x1.75”x0.75”