When it finally deactivates, it remains red and is unusable until it recharges from a few minutes to almost a quarter of an hour. When the Omnitrix is about to deactivate, it beeps and flashes red.

When used normally, the Omnitrix only allows the wearer to occupy a specific form for a limited amount of time, usually around ten minutes. The device is described as a prototype by the show's creators, who also falsely hint that Vilgax had something to do with its creation. Large amounts of energy seem to work, though not consistently, and removing it through amputation also works. Because of the manner in which it operates, the Omnitrix becomes difficult to remove once attached. By pushing the face back down, the Omnitrix binds the selected alien's DNA to the user's own, transforming them into the alien of their choice. The face can then be twisted to select different aliens. When a button on the side is pressed, the face pops up and shows a silhouette of an alien. The Omnitrix (a combination of the Latin words omni- and trix, literally meaning 'many forms') is portrayed as a small alien device that attaches to the wrist of the user like a watch. He compared the Omnitrix to Noah's Ark and Ben to Noah. To Azmuth this function was so important that he decided to forbade Ben from fighting Highbreed. The Omnitrix has the DNA of all sentient species in the galaxy and serves as a means to repopulate them if their species went extint. Eventually the device landed on Earth.ДЄzmuth also designed the Omnitrix with a secondary purpose: a countermeasure against the Highbreed. Fearing for his own safety, Azmuth sent the Omnitrix away to parts unknown. Vilgax and other aliens only saw combat potential in such a device and sought to possess it.

Azmuth created the Omnitrix with the intention to provide the various species of the universe a better understanding of each other, essentially walking a mile in an others shoes.

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