Models touted Wednesday are an inch thick and boast backlit keys for ease of use in a darkened room; a button that launches Windows Media Center for movies, music and other content; media controls; and a wireless connection that works from 30 feet away.
"We think more people are going to entertain using this thing in their living room for media experience," said Matt Barlow, the marketing and business-development director of Microsoft's PC Hardware Division.
The company's hardware group demonstrated a dozen other new and refreshed products for an audience of journalists from around the world.
In addition to the keyboards, Microsoft showed mice designed for business travelers with built-in laser pointers and remote presentation controls, and new ergonomic mice designed to feel like a baseball in the hand.
The keyboards take their design cues from Microsoft's new operating system, Windows Vista, due out in January.
The $250 top-end model features high-contrast brushed-aluminum trim and translucent materials that let users see through parts of the product — all elements contained in an industrial-design kit that Microsoft is circulating to computer manufacturers to guide the appearance of machines that will run Vista.
Rob Enderle, the principal analyst at the Enderle Group, a San Jose, Calif., market-research firm, said the keyboards, due out in February, are among Microsoft's most interesting recent products.