Features: Professional-Grade Accuracy: Portable alcohol tester provides professional-grade accuracy with beeping warning and specific value to ensure accurate results. Fast Test: Support multiplayer continuous fast test breath alcohol tester provides quick and efficient testing, making it ideal for outdoor activities and weddings. Color Lights: This alcohol tester features color lights that change according to your alcohol level. This makes it easy to understand your results at a glance, even in low-light conditions. It's perfect for outdoor activities, weddings, and parties. Overnight Alcohol Measurement: is capable of measuring overnight alcohol levels, providing valuable information for those monitoring their alcohol consumption. Screen Display: With a screen display, our alcohol provides clear and easy-to-read results, ensuring accurate monitoring of alcohol levels. Specification: Material: ABS Battery: 200mAh Light Alert Color: green/yellow/red Size: 12.5*6.5cm Include: 1 * Portable 1 * Charging Cable