Etymotic ER4 XR Earphones

Unlike active noise cancellation, which uses electronics to counteract sound, these earphones use a deep-insertion design to physically block external noise. This provides a very high level of isolation without the need for batteries or the potential hiss sometimes associated with active systems.

Yes. The ER4 XR earphones feature detachable cables, meaning you can swap the included Etymotion Bluetooth cable for a standard wired cable if you prefer a direct connection or need to conserve battery.

The ER4 XR is designed for precision, which requires a deep fit in the ear canal. While this provides industry-leading isolation, some users may find the fit takes time to get used to; we recommend experimenting with the included eartips to find the most comfortable seal for your ears.

The integrated controls are designed to manage standard playback, volume, and call functions for most modern smartphones and tablets. Compatibility is generally universal across iOS and Android devices, though specific button behavior may vary slightly depending on your device's operating system.

These earphones are engineered for accuracy and clarity, offering a balanced sound profile that stays true to the original recording. The 'XR' designation indicates an extended response, providing a slightly enhanced bass presence compared to the standard ER4 model while maintaining the brand's signature analytical detail.