“Please drink responsibly” We know you heard that before, and  now you can actually add some boundary with ingenious device that lets you measure your blood alcohol level accurately,  before you make the mistake of getting behind the wheel.

Meet the Alcohoot  a hardware that you plug directly into the audio port of your  iOS,  Android smartphones or tablets and blow, and the free app that’s available will not only display your blood alcohol level to determine whether or not you are over the legal limit, it will can also help you call a cab, find 24-hour restaurants after a night of drinking, and even keep track of drinking history.