Key Features:
 
Evolved from personal monitor technology road-tested by pro musicians, the SE420 is precision engineered to provide a listening experience that’s true to live performance.  Rediscover your music with Dual TruAcoustic MicroSpeakers that deliver an incredibly rich and detailed listening experience.  Designed for listeners who are as passionate about their music as the musicians who use Shure microphones, the SE420 offers a truly revolutionary audio experience.

Sound Isolating Design
Included sound isolating sleeves block over 90 percent of ambient noise. Combined with an attractive ergonomic design and a modular cable, interruptions from the outside world are minimized, enabling you to focus on your music.  Shure Sound Isolating Earphones require a proper fit to achieve the best sound.
 
Dual TruAcoustic MicroSpeakers
Optimized for listening to high-quality recordings and lossless formats, the SE420 employs two balanced armature drivers that serve as a dedicated tweeter and woofer. Additionally, integrated passive crossovers ensure that high and low frequencies remain distinct and defined. The result is a listening experience that reveals the hidden details of your favorite music.
 
Premium Accessories Kit Includes:

Sound Isolating Sleeves
The role of the included sound isolating sleeves is twofold: blocking ambient noise and ensuring customized fit and comfort. Because every ear is different, the Premium Fit Kit includes three sizes (S, M, L) of the Flex and Foam Sleeves as well as one universal fit pair of Triple Flange Sleeves. Experiment with the size and style that creates the best fit for you—a good seal is key to optimizing sound isolation and bass response as well as maximizing comfort during extended wear.
 
Modular Cable
Based on extensive user feedback, Shure engineers have developed a detachable cable solution to enable unmatched personal customization. An included 3-foot cable allows you to tailor your experience depending on activity and application.
 
In addition to the sound isolating sleeves and modular cable, the premium accessories kit includes:

-  ¼” Adapter
Offers a solution for home stereos or other applications with ¼" jacks

-  Carrying Case
Provides a convenient, tangle-free solution to store your earphones

- Level Attenuator
Allows for comfortable listening from any high-output audio source, including airplane armrests

- Airline Adapter
Optimizes compatibility with European airplane armrests

Two-Year Limited Warranty
Every SE420 purchased comes with a two-year limited warranty on materials and workmanship.

(See warranty information)
  

Technical Specifications:

• Speaker Type: Dual TruAcoustic MicroSpeakers
• Sensitivity (1mW): 109 dB SPL/mW
• Impedance (1kHz): 22
• Frequency Range: 20Hz – 19kHz
• Cable Length/with Extension: 18 in. / 45cm (54 in. / 136cm)
• Color: Available in Black and White

SE420 Interior View

See the technology inside! (PDF)

Download the SE420 User Guide (PDF)

NEW How to Use & Care for Earphones
To get the most out of your earphones, it's important to get a proper fit!  See how to wear, use and care for your earphones in this demo.

Launch Demo (Flash)

Shure Sound Isolating Earphone Line
See more detail on each of the SE models and find out how they compare.
Launch Demo (Flash)

SE420 Interior View

See the technology inside!

Download PDF

"Dual drivers deliver incredible treble, clear mids, and size-belying bass. Great design makes putting them in your ear a cinch. One of the best noise-blockers we've ever tested." - Editors, WIRED

"The SE420s sound very, very good. Tight bass, good overall balance, and solid presence in the highs."  Mike Kobrin, CrunchGear