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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 offer active noise cancellation, optimal for noisy environments, and are true wireless, offering more freedom of movement, but need charging in their case. If you enjoy convenience for activities like working out, or you commute in noisy areas, these may suit you. On the other hand, the Sennheiser CX300S have a reputation for high-quality audio with strong bass and detailed sound, ideal for immersive music sessions, but lack active noise cancellation and are wired, possibly limiting mobility but avoiding battery constraints. Consider your priorities: convenience and noise cancellation, or sound quality and continuous use without recharging. 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 CX300S
- Good for TV and video
Key differences
Music
6.4
6.9
The Sennheiser CX300S and Earfun Air Pro 2 are both only fair for music, though the Sennheiser CX300S is somewhat better.
Gaming
5.1
6.1
The Sennheiser CX300S is only fair for gaming, while the Earfun Air Pro 2 is poor.
Phone Calls
6.1
3.0
The Earfun Air Pro 2 is only fair for phone calls, while the Sennheiser CX300S is poor.
Podcasts and Audiobooks
6.9
4.7
The Earfun Air Pro 2 is only fair for podcasts and audiobooks, while the Sennheiser CX300S is poor.
TV and Video
5.4
7.3
The Sennheiser CX300S is good for TV and video, while the Earfun Air Pro 2 is poor.
Noise Reduction
8.3
7.0
The Earfun Air Pro 2 is very good for noise reduction, while the Sennheiser CX300S is good.
Battery
6.0 Hours
N/A
The Earfun Air Pro 2 has 6 hours of battery life. The Sennheiser CX300S 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 CX300S costs $50.
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Key similarities
Build Quality
8.5
8.0
The Earfun Air Pro 2 and Sennheiser CX300S both have very good build quality.
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How the Earfun Air Pro 2 and the Sennheiser CX300S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Earfun Air Pro 2 | Sennheiser CX300S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$70 | $50 | ||
Brand | |||
Brand | Earfun | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | February 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.4/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 6.1/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 5.2/10 | 6.1/10 | |
TV and Video Score | |||
TV and Video Score | 5.5/10 | 7.4/10 | |
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 | 7/10 | |
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 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Small | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5.5 Grams | 12 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
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 CX300S
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Major HiFi
Carroll Moore | April 2019
"Sennheiser offers impressive bang for your buck when it comes to the CX 300S. Built like a tank and sounding surprisingly good for such a budget-minded earphone, the CX 300S out-classes many of its would-be competitors. Functional but beautiful, it’s the perfect in-ear listening solution for anyone who wants to hear everything and look good doing it."
Get a great deal on the Earfun Air Pro 2 or the Sennheiser CX300S
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
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.
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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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