Batteries Required Breathalyzer with Key Ring, Air-Inhalation Alcohol Tester, Portable Alcohol Tester without Battery, Alcohol Breathalyzer

•【Portable Design】: Compact and lightweight, easy to carry with you wherever you go.

•【Key Ring Convenience】: Without the need for batteries, the breathalyzer can be easily carried with a key ring, ensuring it's always accessible for quick use anywhere.

•【User-Friendly Operation】: Even for novices, the breathalyzer offers a straightforward experience with clear instructions and an easy long-press switch button, making it simple to operate.

•【Versatile and Durable】: Designed for on-the-go use, this portable alcohol tester is compact and comes with a key ring, making it perfect for various environments and weather conditions.