Portable and compact design: The LED Breath Alcohol Tester is designed for easy portability, making it a companion for parties, road trips, or gatherings. Its compact size of 108x35x2 mm allows it to fit easily in your pocket or bag. Userfriendly operation: Featuring a straightforward interface, this breathalyzer allows anyone to quickly measure their blood alcohol concentration with minimal effort. Just blow into the device and receive results with clear voice prompts in both Chinese and English. Reliable materials: Constructed from ABS material, this tester is resistant to wear and tear. It is built to withstand regular use without deformation, providing longlasting performance. LED indicator lights: The device features a tricolor LED indicator system (green/yellow/red) to provide immediate visual indication of your alcohol level, allowing you to make informed decisions before driving or engaging in activities. Use scenarios: At parties to assess BAC before deciding to drive. On road trips to monitor BAC while traveling with friends. During gatherings to quickly check BAC levels for safety and planning.