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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize a lower price and a simple, effective listening experience, the Sennheiser CX300S would be a better choice. However, the Antlion Kimura Duo offers a detachable boom microphone, which is beneficial for clear voice communication during calls or gaming. This added functionality of the Kimura Duo comes with a higher cost. Both earbuds offer a closed design for passive noise isolation, but if having a microphone isn't crucial for you, the Sennheisers provide a more budget-friendly option without sacrificing quality sound. 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 Antlion Kimura Duo
- Very good for music
- Very good for gaming
Advantages of the Sennheiser CX300S
- Good for air travel
Key differences
Music
8.0
6.9
The Antlion Kimura Duo is very good for music, while the Sennheiser CX300S is only fair.
Gaming
8.5
6.1
The Antlion Kimura Duo is very good for gaming, while the Sennheiser CX300S is only fair.
Phone Calls
5.2
3.0
The Antlion Kimura Duo and Sennheiser CX300S are both poor for phone calls, though the Antlion Kimura Duo is somewhat better.
Noise Reduction
6.0
7.0
The Sennheiser CX300S is good for noise reduction, while the Antlion Kimura Duo is only fair.
Cost
$150
$50
$0
$50
$100
$150
$200
The Antlion Kimura Duo has a price of $150 and the Sennheiser CX300S costs $50.
Build Quality
9.0
8.0
The Antlion Kimura Duo has excellent build quality, while the Sennheiser CX300S has very good build quality.
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Key similarities
Podcasts and Audiobooks
5.0
4.7
The Antlion Kimura Duo and Sennheiser CX300S are both poor for podcasts and audiobooks.
TV and Video
7.8
7.3
The Antlion Kimura Duo and Sennheiser CX300S are both good for TV and video.
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How the Antlion Kimura Duo and the Sennheiser CX300S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Antlion Kimura Duo | Sennheiser CX300S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$150 | $50 | ||
Brand | |||
Brand | Antlion | Sennheiser | |
Release Date | |||
Release Date | June 1, 2022 | February 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.1/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.3/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 8.6/10 | 6.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.8/10 | 7.4/10 | |
Exercise Score | |||
Exercise Score | 4.4/10 | 4.2/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 6/10 | 7/10 | |
Virtual Surround | |||
Virtual Surround | N/A | No | |
Mic Quality | |||
Mic Quality | 8/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 8/10 | |
Comfort score | |||
Comfort score | 8.4/10 | 7.6/10 | |
Size | |||
Size | Large | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 21.5 Grams | 12 Grams | |
Microphone style | |||
Microphone style | Boom | N/A | |
Shopping
Antlion Kimura Duo
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Dig into reviews and images
Headphones Addict
Peter Susic | February 2023
"Antlion Kimura Duo aren’t packed with features, but the ones they offer, work incredibly well. Especially the boom mic delivers very clean call quality with no distortion. If you explicitly look for gaming in-ear monitors with a reliable microphone, Antlion Kimura Duo are your best option."
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 Antlion Kimura Duo or the Sennheiser CX300S
About Antlion
Antlion Audio is an American company based in Oregon. Founded in 2011 by Jimmy Console, an engineer and physician, in order to create and offer better solutions for voice communication, specifically a microphone which could be used with any set of headphones which materialized in the very popular ModMic. The company has since expanded to include a wide variety of wired and wireless products.
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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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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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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