We all know how irritating it is to wake up to an alarm, whether it beeps, buzzes, or rings. The Shock Clock is designed to ensure you never need to hear that sound again. It does so by training your body to wake up earlier, using a wrist-mounted gadget to gently vibrate when it's time to wake up. If that doesn't work (and it will in just a few days), you'll keep a loud, annoying beep, and if that doesn't work, it actually zaps you awake. Since your body soon realises that the zap follows the vibration, that's all you'll need to wake up, and a handsome companion app makes it easy to adjust your schedule.