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Virtual Keyboard - Hammacher Schlemmer Projects onto flat, opaque surface. Instant keyboard for iPad, iPhone, Android. Generates 9-3/4" x 4" keyboard with 3/4" keys; recognizes keystrokes in 3D by optical sensor. Invisible IR horizontal plane projected millimeters above the surface detects actual contact with "keys". Type up to 400 chars-per-min. Rechargeable battery for up to 2.5 hrs of operation from a 1.5-hr charge using included USB/AC adapter (or 3 hrs via direct connect to computer).

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