precision and reliable results: equipped with a precision semiconductor alcohol sensor to provide accurate measurement results for everyday use. Versatile and suitable for many settings: appropriate for private use, family celebrations, and events. Easy and fast to use: rechargeable 300 mAh battery with USB charging. after a 10 second warmup, breathe into the device for 5 seconds and the LCD displays the result within 3 seconds. Compact, modern design with noncontact technology: weighs 25 grams and fits easily in a handbag or pocket. after 10 seconds of inactivity, it automatically powers down to save energy. Practical and dependable for real life scenarios: lightweight, portable and quick to read, designed for everyday use without complexity. At a glance specifications and capabilities: sensor type precision semiconductor alcohol sensor; battery rechargeable 300 mAh; charging USB; warmup 10 seconds; measurement breath duration 5 seconds; display LCD; autoshutdown after 10 seconds of inactivity. Use scenarios Home gathering: quickly check guests' alcohol levels before driving or ordering rides, helping you make safer transportation decisions. Family celebrations: discreetly monitor drinking levels during a gathering to support responsible behavior and safety. Private events or small parties: staff or hosts can use the device to verify alcohol levels for guests, supporting responsible service and safety at the event.