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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you're looking for top-tier sound quality for gaming and TV with advanced features like active noise cancelling and wireless connectivity, the Master & Dynamic MW75-Neuro is a high-end choice; they also offer unique AI technology to optimize your daily activities and mental health routines. However, they are bulkier and not as suited for exercise. On the other hand, the Sennheiser HD 400S are budget-friendly with good sound quality and comfort, ideal for music and calls, but they lack wireless functionality, active noise cancelling, and are not the best for portable use or exercise. Consider what features are most important to you and if they justify the higher price of the MW75-Neuro. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Master & Dynamic MW75-Neuro
- Excellent for gaming
- Excellent for TV and video
- Very good for air travel
- Excellent for podcasts and audiobooks
Advantages of the Sennheiser HD 400S
- The Sennheiser HD 400S has no clear advantages over the Master & Dynamic MW75-Neuro.
Key differences
Music
7.8
7.1
The Master & Dynamic MW75-Neuro and Sennheiser HD 400S are both good for music, though the Master & Dynamic MW75-Neuro is somewhat better.
Gaming
9.3
8.6
The Master & Dynamic MW75-Neuro is excellent for gaming, while the Sennheiser HD 400S is very good.
Phone Calls
8.8
8.2
The Master & Dynamic MW75-Neuro and Sennheiser HD 400S are both very good for phone calls, though the Master & Dynamic MW75-Neuro is somewhat better.
Podcasts and Audiobooks
9.4
7.6
The Master & Dynamic MW75-Neuro is excellent for podcasts and audiobooks, while the Sennheiser HD 400S is good.
TV and Video
9.3
7.6
The Master & Dynamic MW75-Neuro is excellent for TV and video, while the Sennheiser HD 400S is good.
Noise Reduction
8.3
5.3
The Master & Dynamic MW75-Neuro is very good for noise reduction, while the Sennheiser HD 400S is poor.
Battery
32.0 Hours
N/A
The Master & Dynamic MW75-Neuro has 32 hours of battery life. The Sennheiser HD 400S does not have a battery.
Cost
$649
$50
$0
$100
$200
$300
$400
The Master & Dynamic MW75-Neuro has a price of $649 and the Sennheiser HD 400S costs $50.
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Key similarities
Build Quality
8.5
8.5
The Master & Dynamic MW75-Neuro and Sennheiser HD 400S both have very good build quality.
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How the Master & Dynamic MW75-Neuro and the Sennheiser HD 400S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Master & Dynamic MW75-Neuro | Sennheiser HD 400S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$649 | $50 | ||
Brand | |||
Brand | Master & Dynamic | Sennheiser | |
Release Date | |||
Release Date | January 1, 2024 | January 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.9/10 | 7.2/10 | |
Phone Calls Score | |||
Phone Calls Score | 8.8/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 9.4/10 | 8.7/10 | |
TV and Video Score | |||
TV and Video Score | 9.3/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.2/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 32 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.1 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.4/10 | 5.3/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 8/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 7/10 | 8.4/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 338 Grams | 213 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
Sennheiser HD 400S
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Dig into reviews and images
Headphone Dungeon
Jim | August 2022
"Sennheiser has done it again. The HD 400S performs well beyond its price range and is one of the better budget model headphones I’ve tried. It has very few bells and whistles and offers a simple means of listening that still delivers amazing clarity and quality. If you need a good first pair of headphones or need something that you can take out of the house, then the HD 400S is definitely for you."
Get a great deal on the Master & Dynamic MW75-Neuro or the Sennheiser HD 400S
About Sennheiser
A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.
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This information was produced and vetted by the PerfectRec earbuds & headphones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest earbuds or headphones information and makes it digestible for you.
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About the Earbuds or Headphones team
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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