Features: High accuracy: Equipped with high-precision chip, intelligent sensors, more accurate measurement. Scientific filtration: The mass of alcohol is biased downward flow, impurities are automatically discharged, the detection results are more accurate. Anti-dust design: Slide up to open the detection, slide down to close, to prevent dust from entering the detector. Non-contact: Direct blowing detection, avoiding the hygienic problems of the blowing tube, the measurement is safer and healthier. LED HD screen display: Simple and easy to read, test results at a glance. Small and lightweight: Portable design, with lanyard hole, can be hung, convenient storage. Specification: Model: H10 Color: black\white(optional) Material: abs Charging input: 5V 1A Package size: 14.5 * 8.1 * 2.5cm Package weight: 89g Packing List: 1 * Breathalyzer