

🎧 Elevate your sound game — because average just won’t do.
The Sennheiser HD 400S over-ear headphones deliver studio-grade sound with an 18 Ω impedance and a wide 18–20,000 Hz frequency response. Featuring a one-button smart remote for effortless call and music control, these foldable, lightweight headphones (217g) combine durability with comfort. Compatible with any device sporting a 3.5mm jack, they’re perfect for professionals craving immersive audio on the move.







| ASIN | B07NFQ9FQQ |
| Age Range Description | Adult |
| Antenna Location | Calling |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | 1,593 in In-Ear Headphones |
| Box Contents | HD 400S around-ear headphones, RCS 400 detachable single-sided cable with 1-button remote and 3.5 mm angled plug, Safety Guide, User Manual |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Cable Features | Detachable |
| Cable Length | 4.9 Feet |
| Carrying Case Color | Black |
| Carrying Case Material | Standard packaging |
| Colour | Black |
| Compatible Devices | Smartphones, Telephones |
| Control Method | Remote |
| Control Type | Call Control |
| Controller Type | Remote |
| Country of Origin | China |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 out of 5 stars 2,606 Reviews |
| Ear placement | Over Ear |
| Earpiece Shape | Round |
| Enclosure Material | Plastic |
| Form factor | Over Ear |
| Frequency Range | 12 - 22000 Hz |
| Global Trade Identification Number | 00615104327870 |
| Headphone Form Factor | Over Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 18 Ohms |
| Item Type Name | Headphone |
| Item Weight | 7.65 Ounces |
| Manufacturer | Sennheiser |
| Model Name | HD 400S |
| Model Number | HD 400S |
| Network Connectivity Technology | Wired |
| Noise Control | Sound Isolation |
| Noise control | Sound Isolation |
| Number of Items | 1 |
| Product Features | Foldable |
| Sensitivity | 18 Ohm |
| Series Number | 400 |
| Specific Uses For Product | Music |
| Style Name | [INF] Modern/Contemporary |
| UPC | 615104327870 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
M**S
Quality build and superb sound.
Superb sound quality, very comfortable to wear. I played some of old favourites through the cans (headphones). I was amazed. I could hear all sorts of instruments never heard before like super clear acoustic guitar, castanets, maracas, triangles, flutes, tinkling pianos. The base line thumping,the vocals were superbly clear. It was like being in a recording studio.Would recommend these headphones to anyone.
I**T
Need time to burn in
Almost sent these back at first.Intially they sounded dire.After a few hours of use they are totally different,well recommend
T**G
Good sound BUT
Good sound BUT quite uncomfortable to wear. The padding around the ears feels very plasticy and quite hard. That is my only gripe hence the 4 stars. Are they worth the money yes. But with hard plastic feeling around the ears I don't think I'll be able to wear for long. I'll probably have get some padding glued to the existing ones
M**F
Superb sound, very comfortable
These are quite ridiculously good for the price. The sound is open, natural and undistorted right up to uncomfortably loud listening levels: the highs are clear and brilliant, the bass profound but clean, never boomy or woofy. The headphones seem solid and a little heavy in the hand, but once on and adjusted feel light and very comfortable. External noises are well-damped, and my wife tells me there is no leakage whatever even sitting right next to me. There is a decent range of adjustment, and the hinges (for folding) feel solid and reassuring. Altogether these are very good headphones indeed, even down to the flat cable and the neat inline control for calls and to pause/skip tracks. Thoroughly recommended!
A**R
Travel headphones
Great for travelling or listening for an hour or two, gets uncomfortable on the ears after a few hours.
H**.
Sound quality is good for price - extremly uncomfortable after relatively long sessions
I would recommend Sennheiser's older model HD206 over this one, they are larger, cheaper and more comfortable. Sound quality difference isn't noticeable.
M**B
Super
Great fit very comfy, surrounds the ears , also great sound
K**Y
Took a long time for sound …
These sounded awful from new , then my son used them for his x box for an hour a day for a few months , now they sound great ! ……I have since read you are supposed to ‘break them in ‘ for about 50 hours on half volume ..
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