JVC Kenwood Victor Spiral Dot Pro Medium Improved Sound High Sound Silicone Compatible with EP-FX13M-B Earpieces, SF, 4-Piece Set, Quality, Isolation,

1. New oval shape for a comfortable fit in the ear canal and a stress-free fit The new oval earpiece shape and low umbrella design make it easier to fit in the ear canal and provide a stress-free fit. In addition, the distance from the ear to the driver has been shortened and the opening has been widened, improving the reproduction of ultra-high frequency bands. 2. High-quality sound and comfortable listening technology inherited from the "Spiral Dot Pro" series 1) Clear sound with our proprietary "Spiral Dot" sound quality improvement technology We use our proprietary "Spiral Dot" sound quality improvement technology, which arranges dots in a spiral pattern on the inner wall of the earpiece. By diffusing reflected sound within the earpiece and optimizing the balance with direct sound, we reduce sound muddiness and achieve clear sound. 2) Modified earpiece shape for enhanced reproduction of even the most delicate sound details A spiral convex shape has been added to the "Spiral Dot" (mentioned above), and the entire earpiece shape has been modified to enhance reproduction of even the most delicate sound details. 3) Soft grade silicone material is used to achieve a comfortable fit and high level of sealing.Soft grade silicone material is used to achieve a comfortable fit that feels good on the ears and high level of sound insulation. 3. Available in five sizes (S/MS/M/ML/L) so you can choose the size that best fits your ears We offer a lineup of five sizes (S/MS/M/ML/L) so you can choose the earpiece size that best fits your ears.