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Bluetooth keyboard and iPhone OS 4

Intell said:
Those are laser keyboards. The keys are drawn by a laser and the "pressing" of the key is registered by infrared light and the whole thing talks to a computer or other device over Bluetooth.
Click to expand...

You explained absolutely nothing. If I wanted to learn nothing, that would have done the trick.

Two lasers are projected. One creates the keypad and the other can tell what keys you're hitting once you break the horizontal plane. Everyone knows what bluetooth ****ing is.
 
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