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Let’s start the article from the disadvantages of high tech. Taking USB flash drive for example, the small-sized storage device  effectively keep our information safe and allows us to use them anywhere. Then you never imagined what would happen if they went wrong? Well, all the information disappeared…and left nothing. That’s why the designers are developing these heavy-duty USB flash disks. Made from metal, these key-shaped flash drives could last quite a long time to serve you while not requiring you to pay special attention to them.

Forgetful people are always bothered by various things, for example, they are not sure whether or not they have locked doors. That’s the main reason why ‘Smart Key’ is invented, and it can help to resolve such problems effectively. The key is pasted with a plastic piece to show the state of the lock. When you tend to lock the door, simply circumgyrate the key to the end and the plastic piece will be twisted to show information like ‘door locked’ on it; correspondingly, both the plastic piece and the information cue will then change as you use the key to open the door.

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Credit card is very common, but have you heard credit key? As a matter of fact, it is a car key from BMW and can finish your payment as well. Car key is certainly used to control your car. But this one an also access your bank account and so you do not need to take credit card or cash with you. [Read the rest of this entry...]