The Wisair Wireless USB Audio and Video PC to TV converter kit transmits whatever is on a computer screen to an HD TV or projector. It requires Windows, and has a USB stick that connects to the desktop or laptop. A second device, powered by a wall plug, connects to the television using an HDMI cable or a VGA cable with audio jack (can connect to two televisions at once). Supports HD video up to 720p. Television and computer can be up to 30 feet apart in the same room.
Ups: Set up was easy on a Windows 7 laptop. Once
the software was installed, I didn't need to fuss with settings: Every
time the USB is attached, it automatically transmited the signal to the
TV or projector. Audio came in great through my television.
Downs: If there's the slightest hiccup or delay in watching a streaming online video or watching a DVD from the computer, it's made worse once transmitted to the TV and fast movement looks choppy.
best when the TV and computer are not interrupted with walls, so it
isn't a good solution for a desktop computer that's in a different room
than the TV.
Bottom line: If your computer can handle video well and you have a fast Internet connection, it's a handy solution to watch Web videos on a big-screen TV -- but you'll have more success if the computer is in the same room as the TV. And the portable factor makes it handy for business use.