The lack of instructional media utilization has resulted in less active and suboptimal learning processes, particularly in syllable pronunciation among early childhood learners. Young children tend to learn through play; therefore, engaging learning media are needed to enhance their participation. This study aims to develop the Magic Letter Pinwheel as an alternative instructional medium to support syllable pronunciation for Group B children at TK Dharma Wanita 03 Lojejer, Wuluhan Subdistrict, Jember Regency. The research employed a research and development (R&D) method using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Data collection techniques included observation, interviews, questionnaires, tests, and documentation. The research subjects were Group B students, with assessments conducted by three validators: a media expert, a material expert, and a learning expert. The development process followed the ADDIE stages and utilized easily accessible materials. Validation results indicated a feasibility score of 95%, categorized as highly appropriate. Improvements in children's pronunciation skills were observed, with pretest scores at 80% and posttest scores at 90%, reflecting a 13% increase. Therefore, the Magic Letter Pinwheel is considered effective for enhancing syllable pronunciation skills in early childhood education.