How this thing works is this: there is a motion sensor and microphone in the tag you attach to your dog’s collar that interprets your dog’s activity. It connects wirelessly to a USB receiver within 100 feet of your computer. Once you’ve set up a Twitter account for your pooch, he’s off and Twittering automatically from a list of several hundred pre-loaded Tweets! You can set the frequency of tweets; don’t worry. It comes with software for Windows 7, Vista, XP, and Mac, as well as one CR2032 battery.
You can pick one (or more) up at Hammacher Schlemmer for $29.95 US.