Description: It is a compact and portable breathalyzer that can easily fit in your pocket or purse. You can use it to determine if you can drive when you attend a party, wedding, banquet or other outing to ensure safe driving after drinking. There is a rechargeable breath tester with USB cable. It is energy efficient as the tester will automatically shut down after 10 seconds of inactivity when the test results are available. Made from plastic and electronic component materials, the product is durable to use. The length of the product is 9.2 cm, the width is 2.6 cm, the height is 2 cm. It is used to measure your breath concentration after drinking, which is very convenient to use. Item Name: Drunk Driving Tester Material: Plastic,Electronic Component Current: 150mA Use Time: 1.5 Hours Charging Time: 1 Hour Response Time: