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Summary
The Shure SE420 earphones fit snugly inside your ear canal so all you hear is your music and nothing else. In fact the earphones will block around 90% of ambient noise out so are perfect for trains, planes and buses. And the sound is just simple fantastic – your music has never sounded so good.

What They Say

...they can provide some excellent detail and a cleanly extended frequency balance... they also block a high proportion of external noise... Tech.co.uk, May 2007

Manufacturer's Description
Featuring Dual TruAcoustic MicroSpeakers, the SE420 uses a dedicated tweeter and woofer to provide a detailed sound stage. Lows, mids and highs are distinct and defined – for accurate reproduction of all the details of your music.

Included sound isolating sleeves block over 90% 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.

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 favourite music.

Because every ear is different, the SE420 includes three sizes (S, M, L) of the flex and foam ear sleeves. And a durable and compact carrying case is also included to provide a convenient, tangle-free solution to store your earphones.