Digital LCD display with a backlight clearly highlights real-time BAC readings and device status. The high-contrast screen provides precise, easy to read measurements in any lighting. USB rechargeable design allows convenient charging from a power bank, computer, or car charger. The built-in rechargeable battery supports long-lasting power to meet ongoing testing needs. Safety focused: delivers accurate alcohol concentration values and provides a prompt and a light alarm when the result exceeds the preset value, helping promote responsible use. Practical and portable: compact pocket size, lightweight construction, and discreet design make it easy to carry and use anytime, anywhere. Key features at a glance - Real-time BAC readings on a backlit LCD display for quick, clear results - USB charging: power bank, computer, or car charger compatibility - Built-in rechargeable battery for extended use - Accurate values with a prompt and a light alarm if exceeding the set threshold - Pocket-sized, portable, and discreet for on-the-go testing Use scenarios - After a social event or party, check your BAC to decide if you should drive. - Before operating a vehicle or heavy machinery, confirm you are within your safe limit. - While traveling or commuting, verify compliance with personal limits or local regulations before drinking and driving.