Closed-Back Around-Ear Design
Circumaural earcups help reduce ambient noise and create a more immersive personal listening space.
Travel Ready
Sennheiser HD 400S Over-Ear Headphones
$89.95
508598
In stock, ready to ship
Pairs well with
Sennheiser HD 400S Over-Ear Headphones
$89.95
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Product Details
Sennheiser HD 400S Over-Ear Headphones
A travel-ready over-ear headphone designed to deliver premium Sennheiser sound, strong passive noise isolation, comfortable long-session wear, and easy everyday control in a foldable portable format.
Immersive closed-back listening, powerful bass, and convenient one-button control for commuting, travel, work, and everyday music enjoyment.
Executive Summary
Core Capabilities
Technical Specs
Portable Sennheiser Listening with Closed-Back Isolation and Everyday Convenience
The Sennheiser HD 400S over-ear headphones bring the brand's signature sound into a versatile, commuter-friendly design built for everyday listening. Its closed-back circumaural construction helps reduce ambient noise for a more focused and immersive experience, while precision-engineered dynamic drivers deliver balanced audio with deep, powerful bass. A lightweight foldable structure, detachable cable, and integrated one-button smart remote with microphone make the HD 400S especially practical for music lovers who want comfort, portability, and simple call or playback control across a wide range of devices.
Closed-Back Over-Ear Isolation
The around-ear design helps reduce outside noise for a more immersive listening experience during travel, commuting, or focused everyday use.
Sennheiser Signature Sound
Dynamic drivers deliver balanced audio with clear detail and impactful bass for music, calls, videos, and general entertainment.
Smart Remote and Built-In Microphone
The integrated one-button remote lets you control music and answer calls without reaching for your connected device.
18Hz–20kHz
Frequency Range
Wide frequency response supports deep bass extension and balanced everyday sound reproduction.
18 Ohms
Impedance
Efficient power handling makes the HD 400S easy to use with phones, tablets, laptops, and other portable devices.
120 dB
Maximum SPL
Strong output capability supports dynamic listening with confident volume and energy.
217g
Weight
Lightweight construction helps improve comfort and portability for extended listening sessions.
Core Capabilities
Closed-Back Circumaural Design
The HD 400S features a closed-back around-ear construction that helps reduce ambient noise and keeps your listening more focused, making it especially well suited for travel, commuting, shared spaces, and immersive everyday use.
Dynamic Sennheiser Drivers with Powerful Bass
Precision-engineered dynamic drivers provide the balanced clarity expected from Sennheiser while delivering deep, impactful bass that adds energy and presence to music, podcasts, movies, and mobile entertainment.
One-Button Smart Remote with Microphone
The detachable cable includes a built-in one-button smart remote and microphone, allowing quick music control and call handling for more convenient everyday use without pulling your device from your pocket or bag.
Foldable Travel-Ready Construction
A foldable, lightweight, and robust design makes the HD 400S easy to pack and store, offering a portable over-ear solution for users who want better sound and comfort without sacrificing convenience.
Detachable 3.5mm TRRS Cable Compatibility
The detachable 1.4-meter cable with right-angled 3.5mm TRRS connector provides broad compatibility with smartphones, tablets, laptops, and other standard audio devices while also supporting easier cable replacement and portability.
Key Features
Sennheiser Dynamic Drivers
Balanced, clear sound with deep impactful bass for music, videos, and everyday entertainment.
1-Button Remote and Microphone
Simple inline control makes it easy to play, pause, and answer calls on compatible devices.
Foldable Lightweight Build
Portable construction folds down for easier storage in backpacks, travel bags, or daily carry setups.
Detachable 1.4m Cable
A removable straight cable improves practicality and uses a universal right-angled 3.5mm TRRS plug.
Comfort-Focused Ergonomics
Lightweight structure, plush earcups, and an ergonomic headband support long listening sessions with less fatigue.
Technical Specifications
Audio & Performance
Driver TypeDynamic
Frequency Response18 Hz – 20 kHz
Impedance18 Ohms
Maximum SPL120 dB (1 kHz / 1 Vrms)
Noise Isolation StyleClosed-Back Enhanced Isolation
Microphone, Controls & Cable
Built-In ControlsYes, 1-Button Smart Remote
MicrophoneDynamic, Omnidirectional, -44 dB Sensitivity
Cable TypeDetachable, Straight
Cable Length1.4 m / 4.6 ft
Audio Connector3.5mm TRRS Right-Angled
Design & Comfort
Wearing StyleOver-Ear (Circumaural), Dual Ear with Headband
FoldableYes
Open/Closed-BackClosed-Back
ColorBlack
Weight7.7 oz / 217 g (with cable)
Packaging & Warranty
Package Weight0.99 lb
Box Dimensions10.4 × 7.8 × 4 in
Warranty2 Years (Manufacturer)
UPC615104327870
Package Contents & Warranty
Sennheiser HD 400S Over-Ear Headphones
UPC: 615104327870 • Closed-Back Portable Design
In the Box
Sennheiser HD 400S over-ear headphones and detachable 1-button remote cable.
Warranty
Limited 2-year manufacturer warranty for long-term listening confidence and dependable ownership support.
A Smart Portable Sennheiser Headphone for Everyday Listening and Travel
The Sennheiser HD 400S combines signature sound quality, strong passive isolation, comfortable over-ear wear, and practical smart-device control in a lightweight foldable design made for life on the move. Its balanced sound, impactful bass, detachable cable, and travel-friendly construction make it an excellent choice for commuters, music lovers, students, and anyone who wants dependable Sennheiser performance in a versatile wired headphone.
Closed-Back 18Hz–20kHz Remote + Mic 2-Year Warranty
UPC: 615104327870 • Limited 2-Year Manufacturer Warranty. A compelling Sennheiser over-ear option for users seeking portable comfort, immersive sound, and simple wired control.
Included in the Box