DJ Rotom is a Rotom that possesses a stereo system in Pokémon Pokopia.
Rotom is a Pokémon known for inhabiting electrical appliances, and Pokopia uses that concept directly. In the game, DJ Rotom has possessed a stereo system and is presented as one of the special Pokémon encountered during the restoration adventure.
The character’s DJ identity also connects with Pokopia’s relaxed, domestic style. The game includes building, decoration, music, cooking, and other everyday activities alongside exploration. DJ Rotom therefore fits the game’s emphasis on Pokémon expressing themselves through jobs and hobbies rather than only through combat.
DJ Rotom is not a separate species or a new evolution. Rotom has several appliance-based forms in Pokémon media, but the Pokopia character is specifically described as Rotom possessing a stereo system.