Portable design This alcohol tester is compact and lightweight, designed to fit easily in your purse or pocket for convenient testing at events such as weddings and parties. Its small size makes it quick to carry and ready for use when needed. Noncontact detection The device uses a noncontact detection approach that allows direct blowing into the sensor area. This setup helps maintain hygiene and reduces crosscontamination risk while delivering simple, straightforward results. Builtin flashlight Activate the builtin flashlight by pressing the on button twice quickly. The illumination is useful in emergencies or when testing in dim or lowlight environments. Userfriendly operation The tester features a simple, intuitive interface with clear indicators, so anyone can operate it easily and check the alcohol level without complex steps or training. Key attributes and performance Function: measures breath alcohol content with direct blowing input for ease of use Size: compact and portable for everyday carrying in a purse or pocket Material and build: designed for durable, practical use in typical social settings Performance: delivers quick, easytoread results with minimal setup Use scenarios 1) At weddings or parties, discreetly check a guest's or your own alcohol level to help maintain safety during celebrations. 2) After a social event, determine whether it is prudent to drive by obtaining a fast breathalcohol reading before leaving the venue. 3) In outdoor or poorly lit environments, use the builtin flashlight to illuminate the device while taking a reading, ensuring the result is visible and accessible.