Parts of Microphones, Loudspeakers, Headphones, Earphones & Audio Amplifiers

A finished loudspeaker is generally classified as a complete article, while individual components — such as a raw driver cone, voice coil, or crossover network — qualify as parts. The determination hinges on whether the item is identifiable as solely or principally used as a part of the named apparatus. CBP rulings and the General Rules of Interpretation guide this analysis; a licensed customs broker can help assess borderline cases.

Parts must be marked with their country of origin in a conspicuous location unless an exception applies. When components undergo further processing in a third country before US entry, the substantial-transformation test determines the marked origin. Importers should document each processing step to support the origin determination, particularly for multi-country supply chains common in consumer electronics components.