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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
The Earfun Air Pro 2 earbuds are a solid choice for those who prioritize portability and wireless convenience, with good noise isolation and a better fit for exercise. However, they have lower microphone quality, which could be a drawback for calls. In comparison, the Sennheiser HD 400S headphones offer excellent comfort and sound quality for music and gaming, with a detachable cable and longer battery life. They might be more suitable for extended listening sessions and provide a better experience for watching TV and video. If you often take calls or need the headphones for professional uses, the Sennheiser might be more appropriate, but the Earfun earbuds will serve you well if you're mostly on the go and prefer a wireless option. 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 Earfun Air Pro 2
- Very good for air travel
Advantages of the Sennheiser HD 400S
- Good for music
- Very good for phone calls
- Very good for gaming
- Good for TV and video
- Good for podcasts and audiobooks
Key differences
Music
6.4
7.1
The Sennheiser HD 400S is good for music, while the Earfun Air Pro 2 is only fair.
Gaming
5.1
8.6
The Sennheiser HD 400S is very good for gaming, while the Earfun Air Pro 2 is poor.
Phone Calls
6.1
8.2
The Sennheiser HD 400S is very good for phone calls, while the Earfun Air Pro 2 is only fair.
Podcasts and Audiobooks
6.9
7.6
The Sennheiser HD 400S is good for podcasts and audiobooks, while the Earfun Air Pro 2 is only fair.
TV and Video
5.4
7.6
The Sennheiser HD 400S is good for TV and video, while the Earfun Air Pro 2 is poor.
Noise Reduction
8.3
5.3
The Earfun Air Pro 2 is very good for noise reduction, while the Sennheiser HD 400S is poor.
Battery
6.0 Hours
N/A
The Earfun Air Pro 2 has 6 hours of battery life. The Sennheiser HD 400S does not have a battery.
Cost
$70
$50
$0
$20
$40
$60
$80
$100
The Earfun Air Pro 2 has a price of $70 and the Sennheiser HD 400S costs $50.
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Key similarities
Build Quality
8.5
8.5
The Earfun Air Pro 2 and Sennheiser HD 400S both have very good build quality.
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How the Earfun Air Pro 2 and the Sennheiser HD 400S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Earfun Air Pro 2 | Sennheiser HD 400S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$70 | $50 | ||
Brand | |||
Brand | Earfun | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | January 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.4/10 | 7.2/10 | |
Phone Calls Score | |||
Phone Calls Score | 6.1/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 5.2/10 | 8.7/10 | |
TV and Video Score | |||
TV and Video Score | 5.5/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.6/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 6 Hours | N/A | |
Wireless charging | |||
Wireless charging | Yes | N/A | |
Charging time | |||
Charging time | 1.1 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.2 | N/A | |
Case Battery Life | |||
Case Battery Life | 24 | 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 | No | N/A | |
iOS App | |||
iOS App | No | N/A | |
Mic Quality | |||
Mic Quality | 6.5/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 8.4/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5.5 Grams | 213 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Shopping
Earfun Air Pro 2
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Dig into reviews and images
Headphone Addict
Peter Susic | September 2021
"There’s a lot to like about EarFun Air Pro 2. The best thing about them is the active noise cancellation, which works almost as well as the best true wireless earbuds out there. The audio quality is funky but enjoyable. Good dynamics and a wider soundstage save its presentation. Everyone, apart from the most diehard audiophiles, should be happy with it."
Sennheiser HD 400S
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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 Earfun Air Pro 2 or the Sennheiser HD 400S
About Earfun
Earfun is an audio equipment manufacturer, headquartered in California, that specializes in producing quality, very affordable earbuds and wireless speakers. According to their site, their mission is to provide high-quality sound that the general public can hear, perceive, and afford.
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
Joe Golden, Ph.D
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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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Earbuds and Headphones Expert
Luis is a Mexico-based headphones expert. He’s been making headphone recommendations for five years and has close to 100 pairs in his personal collection.
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