in the learning process of basic electricity and electronics subject, students face problems in understanding the material because it is considered as difficult without supported of adequate media. Then, the time allocation for basic electricity and electronics learning in the classroom is only four hours in a week, thus the material delivering is considered as not optimally to students. Therefore, teaching learning process needs to be supported by suitable and adequate media. The purpose of this research is mobile based learning media that is valid, practical and effective for Basic Electricity and Electronics subjects. The method of this research is Research and Development (R&D). This research and development used the Borg and Gall model that consists of several stages. The instrument used in this research is validation questionnaire that was given to material experts and media experts. The results obtained from this development research are a learning media based on mobile learning in the Basic Electricity and Electronics subjects. Based on research developed media are valid media, with the results of media validation of 0.84 and material validation of 0.74. The practical value of the results of the teacher's response of 94% and student responses of 84.24% were categorized very practical. From the posttest scores students get effective results that is 0.00 which is smaller than 0.005 which means that it is significant from the value of the experimental class and the control class.
 Fuad Ihsan. Dasar-Dasar Kependidikan. Jakarta : Rineka Cipta. 2003.
 Oemar Hamalik. Proses Belajar Mengajar. Jakarta : Bumi Aksara. 2001.
 Andrew, W. Returns to general, technical and vocational education in developing education Economics, 1(7), 5–19. Journal education academic. 2006.
 Billet, S. Vocational Education, Purpose, Traditions, and Prospects. New York : Springer. 2011.
 Houten, M. M. Van. Vocational education and the binary higher education system in the Netherlands : higher education symbiosis or vocational education dichotomy . Journal of Vocational Education & Training, 6820 (December),1–18. 2017.
 S. Syahril, N. Jalinus, R. A. Nabawi, and Y. Arbi, “The Create Skills of Vocational Students to Design a Product: Comparison Project Based Learning Versus Cooperative Learning-Project Based Learning,” Adv. Soc. Sci. Educ. Humanit. Res., vol. 299, no. 5th UPI International Conference on Technical and Vocational Education and Training (ICTVET 2018) The, pp. 316–320, 2019.Gary B, Thomas J & Misty E. Smartphone. Jakarta: Course Technology. 2007.
 Sugeng Purwantoro, Heni Rahmawati, dan Ahmad Tarmizi. Mobile Searching Objek Wisata Pekanbaru Menggunakan Location Base Service (LBS) Berbasis Android. Jurnal. Politeknik Caltex Riau. (Vol 1). 2013.
 Satyaputra dan Aritonang. Beginning Android Programming with ADT Budle. Jakarta: Elex Media Komputindo. 2014.
 Keegan, Desmond. Mobile Learning : The Next Generation Of Learning. London. Routledge. 2005.
 Musahrain. Developing Android-Based Mobile Learning as a Media in Teaching English. International Conference On Teacher Training Volume 2 Number 1 2016 ISSN : 25002 – 4124. 2016.
 Lu’mu. Learning Media Of Applications Design Based Android Mobile Smartphone.. International Journal of Applied Engineering Research, Vol 12, No.17. 2017.
 Amirullah, Gufron. dan Restu Hardinata. Pengembangan Mobile Learning bagi Pembelajaran. Jurnal Kesejahteraan Keluarga dan Pendidikan, Vol.4, No.2, 2017. 2017.
 Hapsari, Widia, dkk. Pengembangan Mobile Learning Teknik Digital Bagi Mahasiswa Pendidikan Teknik Elektro. Journal of Vocational and Career Education, Vol 2, No.1. 2017.
 Hidayat, Elsa Wahyu. Pengembangan M-Learning Untuk Peningkatan Kompetensi Dasar Pneumatik Di Sekolah Menengah Kejuruan. E-Journal Universitas Negeri Yogyakarta Vol. 8, No 2. 2018.
 Al Hafidz, M. Rifqi Lutfi. Pengembangan Mobile Learning Berbasis Android Sebagai Media Pembelajaran Ekonomi. Jurnal Pendidikan Ekonomi, Vol.11, No.2, 2018.