Feature: 1. Accurate Results: This tester features high accuracy chip and smart sensor that filters out impurities, leaving only alcohol for more accurate measurements. It ensures responsible and safe driving. 2. Easy To Read Clear Display: The alcohol tester features HD digital screen that clearly shows your alcohol status. Small size, lightweight and easy to carry. Helps prevent drunk driving and travel safely. 3. Voice Prompt: The alcohol tester provides voice prompts to immediately inform you whether you are over the limit or about drunk driving. The voice prompt ensures a clear notification of the test results. 4. Hygienic Contactless Alcohol Tester: This digital alcohol tester allows for quick detection without the need for contacting the blowing tube, ensuring a more hygienic and convenient testing process. 5. Portable Design: Compact and lightweight design with USB cable charging ensures your personal alcohol detector is always ready, whether you're at a party, a family gathering, or just enjoying a night out. Specification: Item Type: Alcohol Tester Material: ABS Weight: Approx. 50.00g / 1.76oz Breath Time: 10 Seconds Operating Temperature Range: -5°C to 45°C Storage Temperature Range: 20°C to 50°C Battery: Polymer Lithium Battery 200mah (Included) Detection Method: Semiconductor Gas Sensor Breath Alcohol Concentration Measurement Range: 0-200mg/100mL Measurement Object: Breath Alcohol Concentration Product Size: Approx. 93x25x24mm / 3.7x1.0x0.9in. Package List: 1 x Alcohol Tester 1 x USB Cable Note: When the alcohol tester is taken out of the packaging for the first time, or when it has not been used for a long time, a large amount of gas and other impurities will adhere to the sensor. In this case, you need to press the power button repeatedly to preheat and clean the alcohol tester.