Vio Smartphone Breathalyzer
Do you know how many drinks you should have if you’re driving? None. That’s how many. What if you had a couple and then you need to drive, for an emergency or whatever? Nope. Get a cab, or you’ll be killing a cyclist or a pedestrian to do whatever thing is so important that you’re happy to risk another person’s life doing it.
If you insist on drinking and driving, breathe into the BACtrack Vio Smartphone Breathalyzer first – if you’re not too far gone to use the keychain device. The Vio will measure your blood-alcohol content, send the result to your iPhone via Bluetooth, and even estimate how long it’ll take you to return to zero. $70