The iDog was a robot dog toy designed and manufactured by Sega Toys. An iDog figure receives input from an external music source, such as an MP3 player, and will light up and "dance" to the music's rhythm. It is marketed as the eDog in Germany, Italy and the Netherlands. Basic iDog The iDog reacts to music from an external source, such as an external speaker or through a direct connection to a music source such as an MP3 player. It features seven flashing LED lights on its face and has the ability to 'dance' to the beat of the music by intermittently wiggling its ears and shaking its head. It also has a number of switches on its nose, head and tail which allow it to react to user input. It has various emotions (which change based on user interaction) that provide different color patterns on its LED lights. The iDog began shipping worldwide between March and April 2005. The iDog comes in several colors including white, black, pink, red, lime green, blue, a tiger print, and a dalmatian print. Decorative clothing for the iDog has been released, including feet-warmers, ear-warmers and scarves. Variations In 2005, Sega partnered with Atmos Tokyo to produce sports-themed iDogs as part of a new line, titled "iDog x Atmos". In 2007, Tiger Electronics released the iDog Amp'd, an upgraded version of the iDog with stereo speakers that nod its head and tap its foot in time with the music being played. The iDog Pup, a puppy version of the iDog with poseable ears and a moving head, was released in 2007 and was a localized version of the iDog Mini released in Japan in 2005. Also in 2007, two variants called "SpiDogs" were released to promote the film Spider-Man 3. They resemble the standard Spider-Man costume and the Black Suit respectively. In 2008, three new versions of the iDog were released. The iDog Clip is a fully functional mini-sized iDog which can be clipped onto a backpack, the iDog Dance is a larger version of the iDog that stands up and dances in time to the music, it also features 7 touch sensors (like the iCat), and the iDog Soft Speaker, a plush version of the iDog Amp'd that remixes some songs on it and has a pocket where the battery compartment is so you can store things in it. In 2009, as