With a regular bicycle lock, you secure it to your bike when you park, then just hope that everything will still be intact when you get back. Such is not the case with the bike-mounted Lock8, however. If anyone tries monkeying with it, a high-pitched alarm will sound, and you will be instantly notified on your smartphone. Should the thief proceed to steal the bike, you can use your phone to track its whereabouts.
Read the full article: Lock8 shrieks at thieves and tells you where your bike's been taken