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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
The 1More Sonoflow are closed-back over-ear headphones that offer wireless and wired options, a balanced overall sound quality with good noise isolation, a respectable comfort score, and a built-in microphone, making them versatile for a range of activities including music, calls, air travel, and limited exercise use. They feature active noise cancelling, a battery life suitable for extended use, app equalization for customization and additional features such as ear detection and a foldable design, enhancing portability. In contrast, the Koss KSC75 are budget-friendly, clip-on, open-back headphones with excellent sound quality for music, particularly noted for their soundstage. However, they lack a built-in microphone, active noise cancelling, wireless connectivity, and app features, making them more suitable for home use or environments with less noise where you don't need to take calls. They have a less robust build and don't isolate noise well, but are extremely portable and may be preferable for users wanting a lightweight and unobtrusive listening device for music or TV with natural sound. If budget concerns are less paramount and you need versatile, feature-rich headphones for a variety of settings and uses, the 1More Sonoflow may be the better choice. However, if you prioritize sound quality for music listening at home and are looking for a cost-effective option, the Koss KSC75 are an excellent choice. 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 1More Sonoflow
- Very good for air travel
Advantages of the Koss KSC75
- Very good for music
- Good for TV and video
- Good for podcasts and audiobooks
Key differences
Music
7.2
8.3
The Koss KSC75 is very good for music, while the 1More Sonoflow is good.
Gaming
5.3
6.4
The Koss KSC75 is only fair for gaming, while the 1More Sonoflow is poor.
Podcasts and Audiobooks
6.0
7.5
The Koss KSC75 is good for podcasts and audiobooks, while the 1More Sonoflow is only fair.
TV and Video
5.7
7.7
The Koss KSC75 is good for TV and video, while the 1More Sonoflow is poor.
Noise Reduction
8.3
2.5
The 1More Sonoflow is very good for noise reduction, while the Koss KSC75 is poor.
Battery
40.0 Hours
N/A
The 1More Sonoflow has 40 hours of battery life. The Koss KSC75 does not have a battery.
Cost
$64
$20
$0
$20
$40
$60
$80
$100
The 1More Sonoflow has a price of $64 and the Koss KSC75 costs $20.
Build Quality
8.5
5.6
The 1More Sonoflow has very good build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Phone Calls
5.0
4.8
The 1More Sonoflow and Koss KSC75 are both poor for phone calls.
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How the 1More Sonoflow and the Koss KSC75 compare to other earbuds and headphones
Spec Comparison
 |  | |
| 1More Sonoflow | Koss KSC75 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$64 | $20 | ||
Brand | |||
Brand | 1More | Koss | |
Release Date | |||
Release Date | September 1, 2022 | January 1, 2005 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.2/10 | 8.3/10 | |
Phone Calls Score | |||
Phone Calls Score | 5/10 | 4.9/10 | |
Gaming Score | |||
Gaming Score | 5.4/10 | 6.5/10 | |
TV and Video Score | |||
TV and Video Score | 5.7/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.3/10 | 4.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 40 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 1.3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.4/10 | 2.5/10 | |
Virtual Surround | |||
Virtual Surround | No | N/A | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 6/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 5.7/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 267.6 Grams | 45.3 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
1More Sonoflow
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Dig into reviews and images
Headphonics
Michael | January 2023
"The SonoFlow is cheap and fun, without going too far into being overly warm or annoyingly grating, or sharp sounding. The ANC features are lovely with strong app integration and excellent battery life."
Koss KSC75
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Dig into reviews and images
InEar Fidelity
Crinacle | June 2022
"Let’s not insult the KSC75 by saying that it’s simply good for the price… because it’s far more than that. It basically has a monopoly at its asking price, and could still give modern budget headphones a run for their money 15 years after its release. The KSC75 is the world’s best not-headphone."
Get a great deal on the 1More Sonoflow or the Koss KSC75
About 1More
Music lovers, young or old, frugal or affluent, deserve to hear music as it was meant to be heard, as the artist intended it to be heard. Everyone deserves to hear more. That’s how 1More, a China based company, describes their mission. Their products are all tuned by Luca Bignardi, a sound engineer who’s worked side by side with artists such as Eros Ramazzotti, Laura Pausini and Andrea Bocelli, in an effort to offer premium quality audio devices at midrange prices.
About Koss
Koss is an American headphone manufacturer established in 1953. In 1958, they created the first set of stereophones, that is headphones with stereo sound, and in 1984 they released the world-famous Porta Pro, a set of on-ear headphones that has remained essentially unchanged for more than 30 years and that is still made, sold and loved by many audio enthusiasts around the world today.
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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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