Fangrui Product Details Small And Mini, High-precision Alcohol Tester: Small And Portable Drunk Driving Investigation Stick, Full Voice Broadcast, Accurate And Sensitive, High-definition Large Screen, Wine Light Prompt. Non-contact Blowing, Full Voice Broadcast: From The Boot To The Detection Result Of The Whole Voice Prompt, Detected Alcohol Voice Broadcast, And Light Prompt, Visible, Audible, Simple And Fast Detection. Three-color Detection Light, The Results Are Clear At A Glance: The Detection Result Light Prompts, The Green Light Is Normal, The Yellow Light Has Wine, The Red Light Is Drunk. Intelligent Ai Chip, High-precision Sensor, More Accurate Detection: Intelligent Ai Chip, Intelligent Sensing, No Blowing Not Automatically Detect, Effectively Prevent Fake Blowing Cheating, High-precision Sensor Intelligent Sampling, Excluding Other Impurities Only Leave Alcohol, So That The Detection Is More Accurate. Small And Compact, Easy To Carry, You Can Travel In Your Pocket. Fast Charging: Built-in Large Capacity Lithium Batt