Neonode | News | Virtual 'Keyless' Keyboard Makes Any Surface Interactive
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Virtual Infrared Keyboard
Bluetooth Wireless Keyboard Laser Projection Keyboard Virtual Screen Touch Infrared Office Portable Keyboard for Phone Laptop - AliExpress
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2.4GHz Wireless Keyboard with Trackball and IR Remote
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Belkin Wireless PDA Keyboard F8U1500 B&H Photo Video
KP-810-16 IPazzPort 5 in 1 Wireless 2.4GHz Keyboard Fly/Air Mouse
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This Miniscule IR To HID Keyboard Hides In A Key Cap | Hackaday