Sharing is caring when it comes to keeping devices charged up as seen with the Juice Booster, which will help you to keep your smartphone from imminent shutdown by borrowing some juice from a friend's device. The Juice Booster phone-to-phone charger works with micro USB devices in a very simple way: just connect one device to another and you'll be borrowing (or stealing, depending on how you see it) a little power instantly. The small footprint of the Juice Booster mean it can be placed on your keychain to instantly either take or give power from or to friends.
Naturally, the Juice Booster is designed to share just enough power to keep you going long enough to get home, so don't go stealing all the power from friends.
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