Double-Layered-Core
- Outer softer silicone keeps SpinFit signature comfy wearing experience.
- Inner harder silicone makes W1 more stable when the ear tips are installed on earphones.
W(wave)-shaped design
- Reduce the pressure from outside
- Enhance the noise isolation function.
Recommended earphones style-Multiple drivers and big dynamic driver earphones
- W1 fits perfectly on big and heavy earphones due to the stability the design gives.
- Compatible with the same earphone groups as CP145.
