Portable and convenient: This compact alcohol breathalyzer is designed for easy portability. It is suitable for use at home, at parties, or while traveling, allowing you to check your alcohol levels on the go. USB rechargeable: Features a USB rechargeable battery, providing a sustainable and costeffective solution for regular use. Warning function: Integrated warning function alerts you when your BAC exceeds safe levels, promoting responsible drinking and helping to prevent potential accidents. definition display: Equipped with a definition display that clearly shows your blood alcohol concentration BAC, making results easy to read and understand at a glance. Use scenarios Use at home after a drink to assess whether it is safe to drive or continue with activities. Monitor intake at parties to help maintain responsible consumption. Carry during travel to stay aware of your BAC and make informed decisions while on the go.