The Darth Vader Voice Changer is a toy

Toy

A toy is any object that can be used for play. Toys are associated commonly with children and pets. Playing with toys is often thought to be an enjoyable means of training the young for life in human society. Different materials are used to make toys enjoyable and cuddly to both young and old...

 released by Hasbro

Hasbro

Hasbro is a multinational toy and boardgame company from the United States of America. It is one of the largest toy makers in the world. The corporate headquarters is located in Pawtucket, Rhode Island, United States...

 in 2004
as part of the tail end of its Original Trilogy Collection line of toys focusing on characters from Star Wars

Star Wars

Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

, The Empire Strikes Back, and Return of the Jedi. The voice changer allows the wearer to talk in a voice somewhat like James Earl Jones

James Earl Jones

James Earl Jones is an American actor. He is well-known for his distinctive bass voice and for his portrayal of characters of substance, gravitas and leadership...

 as Darth Vader

Darth Vader

Darth Vader is a central character in the Star Wars saga, appearing as one of the main antagonists in the original trilogy and as the main protagonist in the prequel trilogy....

, the Dark Lord of the Sith, and also included numerous built-in phrases and Vader's breathing sound from the movies.
Variations of the helmet also exist. In 2008, a similar Clone Trooper

Clone trooper

The clone troopers of the Army of the Republic are soldiers in the fictional Star Wars universe, cloned from Jango Fett, a Mandalorian bounty hunter. They first appeared in Star Wars Episode II: Attack of the Clones, and returned in Star Wars Episode III: Revenge of the Sith where they were played...

 Voice Changer was released to promote the Clone Wars

Star Wars: The Clone Wars (film)

Star Wars: The Clone Wars is a 2008 CGI animated science fiction/action film that takes place within the Star Wars saga, leading into the TV series of the same name. The film is set in the same time period as the 2003 Clone Wars television series...

film.

In regions such as Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

 where languages other than English are spoken, the Darth Vader Voice Changer's sounds were modified to fit the language demographic. However, rather than replacing the movie phrases with foreign-language versions, the button that plays back the phrases in the U.S. version simply plays back the same breathing sounds activated by the adjacent button in both the European and U.S. versions.

This proved to be a popular toy. and was repackaged for later use. In early 2005 it was sold in a revised box for the movie Revenge of the Sith.