Wearing Comfort; Vertical In-The-Ear Headphones - Sony MDR-NC300D Manual De Instrucciones

4. Wearing Comfort
4-1 Vertical In-The-Ear Headphones
The introduction of the large 16 mm driver means that the headphones
are worn with the driver positioned at right angles to the ear canal,
enabling rich bass sounds to be enjoyed with no stress on the ear.
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