Google on Wednesday demonstrated Android-based glasses that use augmented-reality technology in which users receive and send information through a clear lens attached to a wraparound frame. Executives said employees will test the technology in public as part of its "Project Glass." Wearers can issue voice commends to exchange messages as well as control a camera that records video and takes snapshots. "We're sharing this information now because we want to start a conversation and learn from your valuable input," Google wrote on its blog.

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