This study aimed to describe the types of audio-visual media used by secondary school teachers to teach English, especially how they were implemented in the class and the challenges faced by the teachers in using the audio-visual media. To accomplish the objectives of the study, the researcher conducted a qualitative study design using a case study. The data were obtained from interviews and observation with two English teachers as the participants in one of the private high schools in Yogyakarta. The findings revealed that video and movie clips were chosen as the types of audio-visual media used by the teachers to teach English. In addition, the study found some problems faced by the teachers when using the audio-visual media such as the problems related to technical problems and choosing appropriate materials.