Sennheiser HD 400U
A USB-C digital audio feed delivers Sennheiser's balanced, detailed sound in a lightweight 218-gram foldable closed-back design that passively cuts ambient noise. Replaceable ear pads and a durable build ensure lasting comfort, while the removable cable system supports the included inline remote cable or an optional analog connection. It's best for remote workers and students needing a reliable, portable headset for calls and video chats, not critical music listening.
form factor over-ear
open closed back closed
41 Overall Score
Price £0
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Snapshot
What owners think
How owner sentiment changed over time
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74/100Our AI sentiment read
Based on 1 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | closed |
| Foldable | Yes |
| Weight | 0.2 kg / 0.5 lbs |
Audio
| Codecs | Sennheiser HD 400U - Wired Over-Ear Headphone with Smart Remote, Black |
Noise Control
| ANC | No |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
| Detachable Cable | Yes |
Battery
| Charging | USB-C |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
| Boom Mic | No |
vs Competition
| Spec | Sennheiser HD 400U | Sony ULT WEAR WHULT900N/B | Bowers & Wilkins Px8 S2 | Apple AirPods Max Midnight | Technics EAH-A800 | JBL Tune 670NC |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | on-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | - | 40 | 40 | 40 | 40 | 32 |
| Impedance Ohms | - | 314 | - | 16 | 34 | 32 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.2 | 5.3 | 5.0 | 5.2 | 5.3 |
| Battery Life Hours | - | 30 | 30 | 20 | 50 | 70 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| Sennheiser HD 400U | 33.5 | 75 | 81.2 | 25.4 | 51.9 | 61.7 | 27.9 | 50.8 | 60.7 |
| Sony ULT WEAR WHULT900N/B Compare | 98.5 | 89.1 | 81.2 | 96.8 | 81.6 | 61.7 | 70.3 | 99.1 | 89.4 |
| Bowers & Wilkins Px8 S2 Compare | 98.5 | 99.5 | 96.1 | 99.5 | 81.6 | 61.7 | 86.6 | 98.2 | 98.6 |
| Apple AirPods Max Midnight Compare | 98.5 | 87.6 | 93.6 | 94.9 | 76.9 | 34.6 | 86.6 | 95.8 | 98.6 |
| Technics EAH-A800 Compare | 95.1 | 98.8 | 81.2 | 97.9 | 89 | 61.7 | 52.6 | 98 | 65.5 |
| JBL Tune 670NC Compare | 98.5 | 75 | 81.2 | 88.5 | 95.4 | 90.9 | 80.8 | 99.4 | 98.6 |
