Tech: TV Without The Cables

Feel like watching TV on the patio? What's that, the cords won't reach? Fear not. At last week's Comdex convention in Las Vegas, Shanghai Visart Technologies, a Chinese firm, unveiled a 17-in. LCD monitor ($900) that doesn't need any wires. The screen can be carried anywhere within about 100 ft. of the base station, which transmits a cable-TV or DVD signal using the same frequency spectrum as cordless phones and wi-fi. A rechargeable lithium battery that lasts four to six hours cuts the TV loose from electrical wires as well. The portable tube should hit stores in the U.S. in time...

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