Description: Instant: This portable breathalyzer features high sensitivity and can quickly and accurately test your breath and quickly display the reading, it needs 10s of preheat time. Non-contact: This breath analyzer features a non-contact design, so it doesn't need you to bite a tube, which makes the device more healthy to use. LCD digital display: With a LCD screen, this breath tester can display reading clearly and has a backlit design. It is easy to read and convenient to use. Power saving: This portable breathalyzer features a low power consumption and automatic power off design. It can work for a long time, has a built-in 200mAh Li-battery. Portable and compact: This breath tester is small and compact that makes you can easily carry it when going out, let you can test drunk driving almost anywhere and anytime. Specifications: Material: ABS. Color: Black, White. Battery: Li-battery, 200mAh.(Built-in) Unit: G/L% BAC. Indicator color: Green, orange, red. Size(LxWxH): Approx. 10x2.7x1.4cm/3.94x1.06x0.55 inch. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1 Piece breath analyzer.(with 1 piece user manual, 1 piece USB cable)