Features： 1、ELIMINATE FALSE BLOWING: No blowing airflow, will not test automatically, so that false blowing has no place to escape, to ensure the accuracy and reliability of the test results. At the same time, the test is easy and fast without delay. 2、VOICE ANNOUNCEMENT AND RECORDING: A clear voice announcement is provided throughout the test, while the user can easily check the last 50 test records. 3、ALERT FUNCTION: When the alcohol tester detects alcohol, the light will flash to remind the user to pay attention. This alert function enables the user to keep abreast of the test results and protects the user on the road! 4、HIGH DEFINITION DISPLAY: Equipped with a high definition display with backlighting, the Alcohol tester can be used clearly even at night, and the test values are accurate and reliable. 5、LONG BATTERY LIFE: The alcohol tester has a Type C charging port and a 500mAh high capacity battery, which can provide up to 15 hours of battery life to meet the user's needs. Specification： Item Type: Alcohol Tester Material: PC Weight: Approx. 85g / 3oz Battery: Lithium Battery 500mAh (Built In) Breath Alcohol Concentration Measurement Range: 0-200mg/100ml Package List： 1 x Alcohol Tester 1 x Charging Cable 1 x Instruction Manual