8527.21 - Combined with sound recording or reproducing apparatus:

This HTS category, 8527.21, encompasses radio broadcast receivers designed for use in motor vehicles that are specifically combined with sound recording or reproducing apparatus within the same housing. This implies devices that can receive radio signals and also play or record audio from other sources, such as cassette tapes or compact discs, as an integrated unit. The "combined with sound recording or reproducing apparatus" qualifier is key, differentiating these from simpler radio receivers.

It is important to distinguish this category from its sibling, 8527.29, which covers "Other" radio broadcast receivers of a kind used in motor vehicles but which are *not* combined with sound recording or reproducing apparatus. Therefore, if a motor vehicle radio receiver can only receive radio signals and lacks any integrated ability to play or record audio from other media, it would fall under 8527.29, not 8527.21.

Within this category, we find further subdivisions. The primary subcategory, noted as "Radio-tape player combinations," clearly indicates a specific type of combined apparatus. Additionally, there is a residual category, "Other" (8527.21.40), which serves to capture any remaining combined radio and sound apparatus not specifically detailed, ensuring comprehensive coverage for all relevant integrated units within this HTS heading.