Plug the Automatic Link dongle into your car, fire up the iOS/Android app, and get the goods on how your driving affects your fuel efficiency; how your car's feeling today; and more.
The speakers and headphones you've spent hard-earned money on don't sound as good as they could, because your computer's audio hardware is likely mediocre. These compact accessories are easy audio upgrades.
Your ears deserve better than the cheap cans you've been using all these years. Luckily, $300 or so can buy world-class quality.