U-Shaped Fixed Clip: The breathalyzer features a U-shaped fixed clip for easy operation and installation. Quickly take and test in emergency situations. Refuse drunk driving with confidence. Three-Color Indicator Light: The portable breath tester has a three-color indicator light, providing clear test results at a glance. Drunk driving reminder with audible alarm, so you know if you're intoxicated. Type-C Port & Long Battery Life: The portable digital breathalyzer features a Type-C charging port, built-in battery design, no need to replace batteries, long battery life, and can be charged for 3 months at a time. Dust Cover: Added dust cover design ensures safety and hygiene. The spiral dust cover makes it difficult for dust to enter, further enhancing hygiene protection. Non-Contact Blowing: The non-contact blowing design eliminates the need to replace the mouthpiece. This portable digital breathalyzer is a great helper. Avoid drunk driving for your life and health. Newly Upgraded Metal Housing: The housing is made of aluminum alloy material, which is resistant to drops and durable. Small and Portable: This portable digital breathalyzer takes up minimal space and can be used anytime with one hand. Includes: 1 x Portable Breath Tester, 1 x Type-C Charging Cable, 1 x Hanging Rope, 1 x Fixing Clip, 1 x Storage Bag, 1 x Manual.