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"The home has remained mostly a wired domain\u2014accessorized with webs of cables snaking across rooms and poking out from behind sofas, bookshelves, and desks. But now, sparked by the popularity of wireless laptops, a new wave of products is emerging, allowing us to cut the cords on home electronics\u2014from computers and televisions to speakers\u2014giving us more flexibility as to where to place these items and changing how we interact with them. Wireless Basics Wireless-fidelity technology (called Wi-Fi) uses electromagnetic waves (rather than wires) to carry a signal from device to device. Most wireless products operate in the 2.4-gigahertz (GHz) radio frequency, as do microwave ovens and cordless phones. So to minimize interference, consider buying wireless TVs, stereos, and PCs that work on the 5GHz band (check the box or ask a salesperson), which may somewhat limit your range.   Sharp Wireless AQUOS TV (LC-15L1U-S), $1,800 This 15-inch, superthin TV features a wireless transmission system that links the unit to a video source (like a DVD player) up to 100 feet away. A built-in rechargeable lithium-ion battery lasts up to three hours, and a handle makes the 11-pound set easy to transport from room to room. 800-237-4277, sharpusa.com. Really Remote Philips&amp;#039; iPronto NTX6400 Network Extender, $400, is a small device that gives you control over your wireless products from anywhere in the house. Say you&amp;#039;re in the kitchen and want to switch the CD track on the living room stereo system, just click the remote\u2014there&amp;#039;s no need to aim it directly at the stereo\u2014and you&amp;#039;re all set. 888-486-6272, philipsusa.com.   Pioneer Wireless Home Theater (HTD-645DV), $700 Featuring five speakers, including two wireless rear speakers, an amplifier, and a subwoofer, this system plays MP3 files, DVDs, and SACDs (super audio CDs, new audio formats that offer an even sharper sound than CDs). Available in July. 800-421-1404, pioneerelectronics.com.   Pixa Rewritable DVD Home Theater (DRW 804), $500 This home-theater-in-a-box comes with two wireless rear speakers mounted on stands, three wired speakers, and a subwoofer. You can record TV programs to DVD+R (single-record) or DVD+RW (rewritable) discs. Or, transfer home movies from a digital camcorder to a re-recordable DVD disc. 925-426-9100   Sony Wireless Headset (MDR DS3000), $300 Roam more than 20 feet from the receiving stand, which plugs into your device of choice\u2014TV, stereo, DVD, computer\u2014with Sony&amp;#039;s newest wireless headset. The rechargeable batteries last up to 20 hours, and for those who like being sung to sleep, a power-saving function automatically turns the headset off if no audio signal is received for 10 minutes. 800-222-7669, sonystyle.com. Coming Soon   Intel Entertainment PC This souped-up computer organizes all your media content wirelessly. The VCR-sized unit, which has no screen of its own, uses your TV as a monitor and is operated with a remote control (there&amp;#039;s no keyboard or mouse). It plays DVDs, stores and plays back digital music, displays digital photos, and records TV programs. Starting at $799; available this summer. 800-538-3373, intel.com.   Sony Location-Free TV With this mobile flat-screen LCD TV weighing less than 5 pounds, you&amp;#039;ll be able to watch the box anywhere you want\u2014within 150 feet of the base station (included). Both the 7- and 12-inch models come with a built-in 56K modem and an on-screen keyboard for accessing the Internet. Price to be determined; available this fall. 800-222-7669, sonystyle.com. "^^<http://www.w3.org/2001/XMLSchema#string>
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