Features: 100% and high quality Blowing type, no need to touch, to avoid the growth of bacteria in the blowpipe type, safer and more hygienic, and healthier for measurement. Built-in high-capacity battery, convenient and durable. LCD high-definition display, precise numerical values, clear at a glance. High-precision chip, smart sensor, filtering other impurities, leaving only alcohol, the test is more accurate. Three-color detection indicator, the detection result is clear at a glance. Upgraded USB cycle charging, longer life. The rechargeable lithium battery can be used for one year without charging when it is fully charged and shut down. Package Includes: 1x Alcohol Detector Specifications: Material:ABS Size: Approx.2.5x9cm/0.98x3.54inches Color:Black/White Charging input: 5V1A Blowing time: 10 seconds (usually 3-5 seconds) Warm-up time: 10 seconds Charging method: USB charging Battery capacity: polymer battery 300mAh Subtitle display: LED Chinese display Range: 0-0.199%-BAC, 0-1.9G/L Executive standard: Q/H LX-001 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.