In the new firmware, the PurPods have four built-in sound effects, which is also better than the Pro version with two built-in sound effects.
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On the actual listening experience, the sound quality performance of the double acting circle did exceed my expectations, but compared with the Pro single acting circle, the difference is not very big. Of course, this may have something to do with my being a fungus.
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But the four sound effects are real, the different audio performance brought by each sound effect switch is very easy to distinguish, for users who like different music styles, in the choice of music style, PurPods options are obviously richer.