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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize battery life and a lightweight, compact design suitable for exercise with sweat resistance, choose the Earfun Air Pro 2. They also feature active noise cancelling for more peaceful listening. However, the Sony WH-CH520 offers better for TV and gaming due to lower latency. They have a longer battery life, and the over-ear form is more comfortable for extended use. The Sonys also come with an app that allows equalizer and control customizations, which the Earfuns lack, and they're better suited for calls and meetings with a higher mic quality. Remember, the Sonys are more affordable, making them a great value if the additional features of the Earfuns don't appeal to you. 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
- The Earfun Air Pro 2 has no clear advantages over the Sony WH-CH520.
Advantages of the Sony WH-CH520
- Good for music
- Very good for gaming
- Very good for TV and video
- Very good for podcasts and audiobooks
Key differences
Music
6.4
7.6
The Sony WH-CH520 is good for music, while the Earfun Air Pro 2 is only fair.
Gaming
5.1
8.8
The Sony WH-CH520 is very good for gaming, while the Earfun Air Pro 2 is poor.
Phone Calls
6.1
6.7
The Sony WH-CH520 and Earfun Air Pro 2 are both only fair for phone calls, though the Sony WH-CH520 is somewhat better.
Podcasts and Audiobooks
6.9
8.0
The Sony WH-CH520 is very good for podcasts and audiobooks, while the Earfun Air Pro 2 is only fair.
TV and Video
5.4
8.2
The Sony WH-CH520 is very good for TV and video, while the Earfun Air Pro 2 is poor.
Noise Reduction
8.3
4.6
The Earfun Air Pro 2 is very good for noise reduction, while the Sony WH-CH520 is poor.
Battery
6.0 Hours
52.0 Hours
The Earfun Air Pro 2 has 6 hours of battery life. The Sony WH-CH520 has 52 hours of battery life.
Cost
$70
$50
$0
$20
$40
$60
$80
$100
The Earfun Air Pro 2 has a price of $70 and the Sony WH-CH520 costs $50.
Build Quality
8.5
7.0
The Earfun Air Pro 2 has very good build quality, while the Sony WH-CH520 has good build quality.
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How the Earfun Air Pro 2 and the Sony WH-CH520 compare to other earbuds and headphones
Spec Comparison
 |  | |
| Earfun Air Pro 2 | Sony WH-CH520 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$70 | $50 | ||
Brand | |||
Brand | Earfun | Sony | |
Release Date | |||
Release Date | August 1, 2021 | April 1, 2023 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wireless | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.4/10 | 7.7/10 | |
Phone Calls Score | |||
Phone Calls Score | 6.1/10 | 6.8/10 | |
Gaming Score | |||
Gaming Score | 5.2/10 | 8.8/10 | |
TV and Video Score | |||
TV and Video Score | 5.5/10 | 8.2/10 | |
Exercise Score | |||
Exercise Score | 6.6/10 | 6.4/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 6 Hours | 52 Hours | |
Wireless charging | |||
Wireless charging | Yes | No | |
Charging time | |||
Charging time | 1.1 Hours | 1.9 Hours | |
Bluetooth version | |||
Bluetooth version | 5.2 | 5.2 | |
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 | 4.6/10 | |
Virtual Surround | |||
Virtual Surround | No | Yes | |
Android App | |||
Android App | No | Yes | |
iOS App | |||
iOS App | No | Yes | |
Mic Quality | |||
Mic Quality | 6.5/10 | 8/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 7/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 10/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5.5 Grams | 147.41 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."
Sony WH-CH520
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Sound Guys
Christian Thomas | September 2023
"If you’re looking for headphones that simply do what you ask them to: the Sony WH-CH520 is a decent option, even if it isn’t very exciting. Sony’s WH-CHXXX line fits this role quite well, and the WH-CH520 offers a decent raft of quality-of-life updates over its predecessor that should keep listeners happy. If the Sony WH-CH520 were a car, it’d be the boring-but-safe commuter compact."
Get a great deal on the Earfun Air Pro 2 or the Sony WH-CH520
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 Sony
Sony is a multinational corporation, based out of Japan, with over 75 years of experience in the consumer electronics industry. In the audio market, Sony has been a trendsetter several times throughout its history. In 1979 they released the first-ever portable music player, the Sony Walkman, followed by the Discman 20 years later. Today, Sony is one of the leaders in the wireless headphone and earbud market, especially in terms of Active Noise Cancellation technology.
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Why trust us
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
CEO and Earbuds and Headphones Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Luis Torres
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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