Mobilními
Mobilními is the instrumental plural form of the Czech adjective mobilní, meaning "mobile" or "portable." In Czech, adjectives agree with the nouns they modify in gender, number, and case, and mobilní takes different endings accordingly. The instrumental plural form mobilními is used with masculine inanimate or mixed-gender plural nouns when the action or relation is expressed with a preposition or verb that requires the instrumental case.
Morphology and usage example: The base form mobilní is used in the nominative plural as mobilní, but
Context and notes: Mobilní is widely used in technology-related vocabulary to describe portable devices and services,