Features: 1.Be made of high quality material, lightweight and durable in use. 2.Digital display: which can improve the detection efficiency. 3.Easy to use: quick response and with automatic shut down function. 4.It can analyze the concentration of alcohol in the blood at any time and anywhere, which is very convenient. 5.Portable design, which is very easy to hold in your hand,and carry in your pocket, car or handbag. Specification: Features:_x000D_ _x000D_ Be made of high quality material, lightweight and durable in use. _x000D_ Digital display: which can improve the detection efficiency. _x000D_ Easy to use: quick response and with automatic shut down function. _x000D_ It can analyze the concentration of alcohol in the blood at any time and anywhere, which is very convenient. _x000D_ Portable design, which is very easy to hold in your hand,and carry in your pocket, car or handbag. _x000D_ _x000D_ Specification:_x000D_ Type: Digital Alcohol Tester_x000D_ Detection range: 0.00-0.19% BAC and 0.0-1.9g / l_x000D_ Function: speaker, Auto off wihthin 1 minute_x000D_ Battery: 2 1.5 V AAA alkaline batteries (NOT INCLUDED)._x000D_ Working time: Heating: 10 seconds Response: