In order to enhance EFL learning, the development of updated technological support has been a critical issue over the past decade. With a booming mobile market in Vietnam, the use of mobile and other portable devices is beginning to have an influence on language teaching and learning. Besides, enhancing students' confidence in using English to communicate with others has become one of the main objectives in English teaching and learning at universities over the last few years. As a suggestion, this study has explored the effectiveness of using mobile phones as video recorders to help students gain more confidence and improve their communication skill. The study involved designing communicative tasks which required students to use their cell phones to create some short clips in which they had to speak English. During the process, an observation sheet was applied to get students' responses so that teachers could provide instant support. Following was a questionnaire to get students' feedback about the effectiveness of these activities. Finally, interviews with students were conducted to find out their attitude towards the use of mobile phones as a tool for learning especially for language learning. The results showed that using mobile phones for language learning seemed to create an inspiring learning environment for the students in which they tended to be more confident to express their opinions. Even though there were some issues related to technical problems or Internet access, student participants showed their great interest in the activities as well as improved their communicative skill.