Do not pull on the polyurethane foam portion of the earbud tip. If it is separated from the earbud tip, it will not function. Compré un juego luego de que las almohadillas de mis audífonos se estropearon. El empaque viene bien sellado y el material de las almohadillas se siente bien, aunque al compararlo con los originales se nota que son un producto de calidad inferior. Sin embargo cumplen su función adecuadamente, sellando la entrada de sonido y haciendo que la función de cancelación activa de ruido funcione apropiadamente. When the environmental temperature or usage temperature is high, the polyurethane foam may take time to return to its original shape. If you've lost the charging case or one earbud, please send the remaining items to one of Sony's Authorised Services Centers, so that a replacement for the missing part can be acquired and reset with the remaining components. Find an Authorised Service Center. The earbuds and the charging case all have pre-set information that allows them to communicate with each other. Only an Authorised Service Center can configure your earbuds' settings to align their firmware versions. All three components (left earbud, right earbud, charging case) must be present during the configuration.

COMPLY COMFORT: Maximize your earbud comfort and eliminate earbud pain caused by silicone tips. Comply foam ear tips are made for all-day comfort. Body-heat activated memory foam adapts and molds to your ear providing a completely customized fit for hours of comfortable listening. If the earbud tips deteriorate, they cannot achieve proper sound qualities or noise canceling effects, and can cause injuries or diseases as the earbud tips may come off and remain in the ear. If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, tap operations or Speak-to-Chat speech detection may not work correctly, or you may not obtain proper sound qualities, noise canceling effects, or call performances.

One of the most impressive aspects of these ear tips is the comfort they offer. The soft silicone rubber is gentle on the ears, even during extended periods of use. They feel more comfortable than the original ones and there's no discomfort or pressure, even after hours of usage. The foam material may become firm at a low temperature. You can use your hands to warm the earbud tips a little before using them. Likewise, when they're very warm, the polyurethane foam may take time to return to its original shape. Durability-wise, these ear tips are made to last. Even after daily use, they still look and feel as good as new. The material does not show any signs of wear and tear, maintaining its flexibility and secure fit.

When the environmental temperature or usage temperature is high, the polyurethane foam may take time to return to its original shape The varying sizes of the holes on the polyurethane foam portion of the earbud tip have no effect on the sound quality.

As the earbud tips fit more snugly in your ears, you may feel a strain to your ears. If you experience discomfort, discontinue use. Do not subject the polyurethane foam portion of the earbud tip to pressure for over long periods of time. It may cause deformation and it may be difficult to return the earbud tip to the original shape. Cannot hear a person during a call/low voice from callers, your voice does not reach the person during a call/your voice is low on the caller’s side.