Features: Professional breathalyzer with electrochemical sensors ensures ±0.01% accuracy and fast result within 3 second. Digital blue LCD screen displays clear readings with voice broadcast in English/Chinese, while build in memory stores 100+ test records and bluetooth-compatible enables wireless data transfer to intelligent devices. Ideal for drives , health awake individuals, and family needing reliable ethanol monitoring before driving or after social event. small (70x45x17mm) for effortlessly in car gloveboxes, pockets, or emergency for at once check at homes , parties, or roadside. Collapsible mouthpiece prevents backflow contamination, while fast charging USB C port ensures 2 hour full power for 500+ tests with ABS construction for durability. Specifications: Material: ABS Size: 70x45x17mm/3x2x1inch Package Includes: 1xAlcohol Breathalyzer note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.