AAC Technologies Holdings, Inc., or AAC Technologies in short form, is a civilian-run enterprise. It engages in the design, development, manufacture and distribution of miniaturized components. AAC Technologies designs, develops and manufactures a broad range of miniaturized components that include speakers, receivers and microphones in the acoustic segment. It produces these components for mobile devices such as smartphones, tablets, wearables, ultrabooks, notebooks and e-readers. Optics, haptic sensors, semiconductors, folding phone hinges, iPhone 17 Pro vapour chamber, 5G antenna, wireless charging coils, reliability testing. AAC Technologies is one of the main suppliers of Apple Inc. Wikipedia