This new gadget is called a “Bringrr,” but we think that’s only because “Hey, Don’t Leave The Prototype in a Bar Next Time, Dumbass Device” wouldn’t fit on the box:
Pair the little Bluetooth-equipped plug with a phone, pop it into a car’s cigarette-lighter port, and it’ll have a conniption (alarm, flashing lights) if the car is started without the phone in close proximity.
Bringrr is $35.