We are an acoustic components manufacturer in Taiwan, Such like speaker, buzzer, microphone, earphone. Aatc is a young company, planning to expand tour business to the world wide. Hope to grow up with our partners, by profit sharing and technical support. Aatc is leading manufacturer of buzzer, we have the biggest market share in PC mother board in the world, Also very good performances in dsc, pos, IPC, MP3, security, blue tooth equipment, Which we provide both with speaker, buzzer, microphone, and earphone. Aatc not only sell components, but also provide technical support to our customer, Both mechanical and electrical, by our experience engineer, with acoustic analysis instrument.