Portable design This alcohol tester is compact and lightweight, making it easy to carry in your pocket or bag. Hygienic no mouthpiece use Blow directly into the tester without mouthpieces. This hygienic design reduces crosscontamination during group events. Simple operation Just blow into the device to test your alcohol level. No additional parts required, enabling quick and straightforward use. Multifunctional flashlight Press the button twice to transform the device into a flashlight. This provides practical lighting in emergencies or dark environments. Use scenarios Weddings and parties: handy for guests or hosts to check alcohol levels and help promote safety in a group setting. Corporate events and large gatherings: enables quick, hygienic tests without sharing mouthpieces, while also serving as a portable light for lowlight areas. Outdoor activities and emergencies: useful for road trips or camping, where the builtin flashlight can assist in dark conditions.