Features: Lightweight and compact, easy to carry. The micro-matte process, delicate for touch, can'for t put it down. Equipped with for smart chips and highly sensitive sensors, the measurement is more accurate. Accurate numerical values, high-definition large-screen display, clear at a glance. USB rechargeable lithium battery, without frequent battery replacement, can be recharged. Quickly estimate your blood alcohol concentration with this small and contactless alcohol breathalyzer. No need to worry about forget to install a mouthpiece or hygiene issue, you can directly blow to the tester inhaler without a mouthpiece, more convenient and safe. Portable to carry it with you, testing your BAC at any for time and anywhere. Specifications: Material:ABS Length: Approx.100mm/3.93inch Width: Approx.26.5mm/1.04inch Color:Black Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Alcohol Breath Tester 1x Instruction Manual