The text deals with the current state of the language of the Czech minority in Crimea. Based on field research, it describes phenomena and changes that occurred in the language of Crimean Czechs that were caused by the influences of the foreign language and culture environment. Main focus of the text is phonetics, i.e. the way how speakers are affected by the Russian pronunciation standards. The text contains historical and cultural context relevant to the departure of Czechs to Crimea and the shape of the Czech minority nowadays. Individual chapters are dedicated to specific phenomena: deviations in the pronunciation of vocals in first syllables of words, changes in the pronunciation of the consonant [j], labialization in pronunciation of consonant [v], changes in the pronunciation of loanwords, pronunciation of consonants [ ] and [ ] in Czech words, pronunciation of toponyms, prosthesis and elimination of speech sounds from the beginning of words, deviations in the pronunciation of speech sounds from the middle of words, vocalization of prepositions and influences of Russian language standards on the use of their vocalized form.