OS(One Stop) Electronic Factory was established in 2010, focusing on hearing instrument components and advanced acoustic. We provide high quality balanced armature receivers for hearing instruments and high-end audio headset.With strong R&D team and professional equipment, OS Electronic has developed different series balanced armature drivers to meet various customers' need. We also offer OEM&ODM service to help clients customize and work out specific projects. In 2013, OS built up its own oversea sales team to expand business all over the world. OS products have been sold to Europe, America and Southeast Asia, and OS Electronic has become a reliable partner to provide clients with headset speakers, hearing aid transducers and in-ear monitor receivers. OS keeps the faith of "honest cooperation, mutual benefit" and sincerely welcomes you to discuss with us about your projects, we will offer you best solutions. We are balanced armature receiver manufacturer!