Ultraportable notcontact alcohol detector: uses notcontact technology, weighs only 25 grams, and fits easily in a handbag or pocket. After 10 seconds of inactivity, it automatically shuts down to conserve energy. Broad applicability: suitable for authorities as well as private use, including family celebrations and events. Intelligent alarms and compliance: issues a voice warning when drunkenness is detected and is designed to support regulatory compliance to help prevent penalties and risks. Easy to use and fast results: equipped with a rechargeable 300 mAh battery and USB charging. After a 10 second warmup, breathing into the device for 5 seconds yields a result displayed on the LCD within 3 seconds. Clear display and reliable performance: compact design with a clear LCD readout for quick interpretation of results. How to use: power on, allow 10 seconds warmup, blow into the device for 5 seconds, read the result on the LCD within 3 seconds; after 10 seconds of inactivity the device shuts down automatically. Practical use scenarios: Before driving after a social event to assess suitability for driving. At private gatherings or family celebrations to monitor alcohol levels and promote safety. At workplace events or official functions to support safety and regulatory awareness.