In recent years, the expansion of digital technologies, multimedia, and social networks, dramatically transformed our lives. Education in general and the area of foreign language teaching and learning have also benefited hugely from those developments and advances. As a result, the face of language learning is changing and new technologies provide language learners and teachers with tools and opportunities unimaginable before. Current study examined the effectiveness of using social media network Telegram® in teaching English language pronunciation to Iranian EFL learners. Participants of this study included 30 Iranian EFL learners (in two experimental (N = 14) and control (N = 16) groups) who received different treatments over the four weeks. The results of pre-test and post-test revealed that the pronunciation of participants in experimental group improved significantly compared to control group but we found no significant improvement in pronunciation of participants in experimental group from post-test to delayed test which was administered four weeks later. The results of current study revealed that using social media networks in teaching language features can be very effective and promising.