Compact noncontact alcohol detector with a modern small size Portable and lightweight: weighs 25 grams and is easy to carry in a handbag or pocket. Energy efficient: auto shutoff after 10 seconds of inactivity to save power. Easy to use: rechargeable 300 mAh battery with USB charging. After a 10second warmup, breathing into the device for 5 seconds delivers a result. The LCD display shows the result within 3 seconds. Accurate performance: precision semiconductor alcohol sensors provide reliable measurements. Practical for home and social use: well suited for monitoring alcohol levels when friends and family are present. Intelligent alerts: voice warning indicates drunkenness. Use scenarios Before driving after a social event, to confirm sobriety quickly and safely. At home gatherings or parties to check guests or family members as needed. In small offices or venues during events to monitor safety and maintain compliance.