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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If wireless convenience is a priority and you need earbuds suited for exercise and casual gaming with a low latency feature, the JBL Tune Flex would serve you well, especially since it offers a longer battery life and sweatproof certification. However, if a more budget-friendly price matters to you, and you're fine with a wired connection, the KZ ZSN Pro with Mic offers good sound quality and build with a detachable cable, but it lacks wireless capabilities and features for exercise. The JBL has active noise cancelling for quieter environments, whereas the KZ does not, but the KZ has an advantage for durability with the in-line mic's cable ear hooks. Consider what features align best with your everyday use and whether the additional cost of the JBL is justified for your needs. 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 JBL Tune Flex
- Good for exercise
- Very good for air travel
- Excellent for podcasts and audiobooks
Advantages of the KZ ZSN Pro (with Mic)
- The KZ ZSN Pro (with Mic) has no clear advantages over the JBL Tune Flex.
Key differences
Gaming
8.5
8.0
The JBL Tune Flex and KZ ZSN Pro (with Mic) are both very good for gaming, though the JBL Tune Flex is somewhat better.
Phone Calls
6.3
5.1
The JBL Tune Flex is only fair for phone calls, while the KZ ZSN Pro (with Mic) is poor.
Podcasts and Audiobooks
9.0
4.9
The JBL Tune Flex is excellent for podcasts and audiobooks, while the KZ ZSN Pro (with Mic) is poor.
Noise Reduction
6.5
5.3
The JBL Tune Flex is only fair for noise reduction, while the KZ ZSN Pro (with Mic) is poor.
Battery
6.5 Hours
N/A
The JBL Tune Flex has 6.5 hours of battery life. The KZ ZSN Pro (with Mic) does not have a battery.
Cost
$60
$24
$0
$20
$40
$60
$80
$100
The JBL Tune Flex has a price of $60 and the KZ ZSN Pro (with Mic) costs $24.
Build Quality
8.5
9.0
The KZ ZSN Pro (with Mic) has excellent build quality, while the JBL Tune Flex has very good build quality.
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Key similarities
Music
7.3
7.7
The KZ ZSN Pro (with Mic) and JBL Tune Flex are both good for music.
TV and Video
7.8
7.4
The JBL Tune Flex and KZ ZSN Pro (with Mic) are both good for TV and video.
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How the JBL Tune Flex and the KZ ZSN Pro (with Mic) compare to other earbuds and headphones
Spec Comparison
 |  | |
| JBL Tune Flex | KZ ZSN Pro (with Mic) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$60 | $24 | ||
Brand | |||
Brand | JBL | KZ | |
Release Date | |||
Release Date | September 1, 2022 | March 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.3/10 | 7.8/10 | |
Phone Calls Score | |||
Phone Calls Score | 6.3/10 | 5.1/10 | |
Gaming Score | |||
Gaming Score | 8.6/10 | 8/10 | |
TV and Video Score | |||
TV and Video Score | 7.8/10 | 7.5/10 | |
Exercise Score | |||
Exercise Score | 7.7/10 | 4.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 6.5 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 2 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.2 | N/A | |
Case Battery Life | |||
Case Battery Life | 18 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 6.5/10 | 5.3/10 | |
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 | 5.1/10 | 7/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Large | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 9 Grams | 7 Grams | |
Microphone style | |||
Microphone style | Integrated | In-Line | |
Shopping
JBL Tune Flex
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Dig into reviews and images
MajorHiFi
Gabby Bloch | May 2023
"JBL is offering a similar design and arguably better resolution than the more expensive AirPods 3rd Generation. Add to that a comfortable and versatile fit, an equalizer and pretty decent ANC, and you’ve got a quality wireless earphone. I would have loved longer battery life and more crystal calls, but for the price, you can’t complain. A solid deal overall."
KZ ZSN Pro (with Mic)
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Dig into reviews and images
PrimeAudio
David Becker | 2019
"Undoubtedly the focus and the star of the show, the ZSN Pro’s bass is big, bold and bangin’. The amount of gusto in the low end should satisfy anyone who likes a large lick of bass and even certified bassheads will probably get a kick out of this."
Get a great deal on the JBL Tune Flex or the KZ ZSN Pro (with Mic)
About JBL
JBL is an American audio equipment manufacturer. Owned by Harman International which is, itself, owned by Samsung Electronics. JBL markets a wide array of monitoring speakers, professional headphones and consumer market headphones and earbuds. It was founded in 1946 by James Bullough Lansing (whose initials give the company its name) and has become one of the most prolific audio companies ever. Their products were responsible for audio during the 1969 Woodstock Festival.
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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.
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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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