Image © SennheiserThe HD 400S features a one-button smart remote conveniently located on the cable, which allows you to control music and take calls with ease, and the sturdy folding design makes these headphones durable and compact enough to be taken anywhere. Sennheiser dynamic drivers deliver a well-extended sound response with dynamic bass.
The Sennheiser HD 400 is a wired, open-back over-ear headphone designed for accurate, neutral monitoring at a budget-friendly price. It focuses on natural tonal balance and detail retrieval, making it a solid choice for critical listening and studio work, though it lacks isolation and extra accessories. Its high impedance and lightweight build suit stationary use with dedicated audio gear.
Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.
| Driver | 40 mm dynamic |
|---|---|
| Driver type | dynamic |
| Driver size | 40 mm |
| Drivers per side | 1 |
| Frequency response | 18 Hz - 20 kHz |
| Impedance | 120 Ω |
| Driver | 40 mm dynamic |
|---|---|
| Driver type | dynamic |
| Driver size | 40 mm |
| Drivers per side | 1 |
| Frequency response | 18 Hz - 20 kHz |
| Impedance | 120 Ω |
| Multipoint pairing | No |
|---|
| Wireless charging | No |
|---|
| Active noise cancelling | No |
|---|---|
| Controls | buttons |
| Weight | 240 g |
|---|---|
| Water resistance | none |
| USB-C | Yes |
| Microphones | 1 |
|---|
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5 source(s) feeding this product's score.
Video reviews we found, each condensed to its verdict. They do feed the HearWiki score, at a measured weight below what a published written review carries.
6:50The reviewer finds the Sennheiser HD 400U to be a compelling modern take on wired headphones, praising its USB-C connectivity, high-resolution audio support, and plug-and-play compatibility across devices. They conclude it offers strong value for everyday listening, gaming, and calls, though they note the lack of active noise cancellation and limited color options as drawbacks.
Summaries are AI condensations of each video's own conclusion, not transcripts. Titles, thumbnails and view counts belong to their channels.
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