kuulokkeisiin
Kuulokkeisiin is the illative plural form of the Finnish noun kuulokkeet, meaning headphones. The illative case marks movement toward or destination into something, and in Finnish it is commonly used with verbs of placement or insertion. In practical use, kuulokkeisiin appears in contexts such as instructions, manuals, or technical descriptions where an action is directed toward the headphones.
In instructional language, kuulokkeisiin conveys that something is being connected to or moved into the headphones,
Kuulokkeet is the plural nominative form; its illative plural, kuulokkeisiin, is formed by adding the illative
In everyday speech, speakers may prefer expressions that specify the sense of wearing or using headphones,