The product is a set of three car audio equalizers/crossovers from various brands such as Rockville, Audiotek, and Pyle. These devices are designed to adjust the sound quality and frequency levels of audio signals in a car stereo system. The Rockville R7EQ, Audiotek EQ700, and Pyle EQ9 are all types of equalizers and crossover units specifically made for car audio systems, offering users the ability to refine and customize their listening experience. This listing includes three untested units, however every car part i have sold on Ebay has worked for my customers. Allowing users the opportunity to experiment with different audio settings and effects to achieve their desired sound quality in their vehicles.
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