Features: he tester uses professional sensors and algorithms to accurately detect the alcohol content in the driver's body, providing reliable measurement results. Users only need to aligns their mouth with the air outlet of the tester and blow air to perform the test, which is simple and convenient to operate and saves time. The tester has a fast response time and can complete alcohol content detection in a short period of time, avoiding unnecessary waiting. The test results are presented in digital display, clear and easy to read, allowing users to easily understand their alcohol content. Powered by rechargeable batteries, it is convenient for charging and long-term use, avoiding the trouble caused by frequent battery replacement. Specifications: Material:Metal,PC Type:Digital Display,Voice Charging input: Type-C Size:Approx.107mm/4.21''x29mm/1.14''x16mm/0.63'' Package Includes: 1x Alcohol Breath Tester note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.