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Sennheiser HD1 Red In-Ear Headphones

At a Glance

Sennheiser HD1 In-Ear-LG-RD Headphones-Red with integrated microphone and three-button multi-function remote

Proposition 65 Warning for California Residents

Luscious listening. This earphone is the smallest member of the HD1 product family. Still, it offers uncompromisingly clear, brilliant and powerful sound like all HD1s, as well as a wealth of valuable quality details – from the nano-precise, stainless-steel sound tunnel to the three-button multifunction remote with integrated microphone. 

Inspired by people with Momentum

Some people live for sound. They go further than others. They go where nobody has ever been. They do things that nobody else has done before. They redefine the boundaries of sound. They have MOMENTUM. Together with a group of talented artists we developed the MOMENTUM project. Get inspired and check out the artists and their videos. 

HD1 In-Ear

The true dimensions of the Sennheiser HD1 In-Ear headphones can be measured not only by their uncompromising sound, but also in a wealth of little details – from the nano-precise, stainless-steel sound tunnel to the three-button multifunction remote with integrated microphone. 

Sleek and sophisticated

The design of the HD1 In-Ear speaks a clear, consistent language. Over 200 contrasting red stitches grace the black-lacquered zipper on the soft-covered case that safely protects your earbuds. The black-and-red cable leads to a red, high-gloss housing. And the outstanding design also extends to their fit, with comfortable tips that sit just right. 

Brilliant and powerful

There’s only one way to deliver uncompromising sound in a small package: by combining top-quality materials with superior craftsmanship. That’s why the acoustic components contain no plastic. They are made of high-quality stainless steel, manufactured using precision milling technology. It’s not a difference you can see – but one you’ll hear in the powerful yet nuanced sound signature. 

Adaptable and ergonomic

You can forget about the HD1 In-Ear. With their ergonomic, adjustable angle of 15°, the buds adapt so well to your ears that you’ll forget they are there. Thanks to the extra-small sound tunnel and a choice of four ear sleeves to fit any size ear, all you’ll experience is the pure sound. 

Functional and durable

The range of In-Ear accessories is as broad as the In-Ear itself is tiny. Including a sturdy hard-shell case, intuitive remote for iPhone and Android, elliptical cable that minimizes tangling and sound loss, gold-plated jack and integrated hands-free microphone. 

What's in the box?

HD1 In-Ear earphones

Ear-adapter set (XS, S, M, L)

Premium carrying case

Technical Data

Impedance: 18 Ω

Frequency response (Microphone): 100 – 10,000 Hz

Frequency response (Headphones): 15Hz - 22000Hz

Sound pressure level (SPL): 118 dB (1kHz/1Vrms)

THD, total harmonic distortion: <0.5 % (1 kHz, 100 dB SPL)

Jack plug: 3.5 mm angled

Cable length: 1.3 m

Weight: 16 g

Pick-up pattern: Omni-Directional

Microphone sensitivity: - 44 dB V/Pa

*Warning (for California residents only): Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Every Consumer Products company is required to post the warning no matter if their products pose any harm. Sennheiser products are all RoHs compliant, yet we are by law required to post the Proposition 65 warning message anyway.