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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 10, 2024·
If you're looking for wireless convenience and features like active noise cancelling, touch display control, and sweatproof certification, the JBL Live Flex 3 earbuds are a premium option; they also offer very good sound for music and exercise use but are not optimized for calls, meetings, gaming, or TV. The KZ ZSN Pro (with Mic) is budget-friendly, offers excellent build quality, and is very suitable for gaming and listening to music; however, it lacks wireless capabilities, active noise cancelling, and is not sweatproof or dustproof, making it less ideal for exercise and travel. Choose the JBL Live Flex 3 for cutting-edge features and portability or the KZ ZSN Pro if you prioritize gaming and cost-effectiveness with a wired connection. 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 Live Flex 3
- Very good for music
- Very good for exercise
Advantages of the KZ ZSN Pro (with Mic)
- Very good for gaming
- Good for TV and video
Key differences
Gaming
5.5
8.0
The KZ ZSN Pro (with Mic) is very good for gaming, while the JBL Live Flex 3 is poor.
Podcasts and Audiobooks
5.9
4.9
The JBL Live Flex 3 and KZ ZSN Pro (with Mic) are both poor for podcasts and audiobooks, though the JBL Live Flex 3 is somewhat better.
TV and Video
5.7
7.4
The KZ ZSN Pro (with Mic) is good for TV and video, while the JBL Live Flex 3 is poor.
Noise Reduction
8.3
5.3
The JBL Live Flex 3 is very good for noise reduction, while the KZ ZSN Pro (with Mic) is poor.
Battery
10.0 Hours
N/A
The JBL Live Flex 3 has 10 hours of battery life. The KZ ZSN Pro (with Mic) does not have a battery.
Cost
$216
$24
$0
$50
$100
$150
$200
$250
$300
The JBL Live Flex 3 has a price of $216 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 Live Flex 3 has very good build quality.
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Key similarities
Music
8.0
7.7
Although they have very similar scores, PerfectRec considers JBL Live Flex 3 to be very good for music, while the KZ ZSN Pro (with Mic) is good.
Phone Calls
5.2
5.1
The JBL Live Flex 3 and KZ ZSN Pro (with Mic) are both poor for phone calls.
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How the JBL Live Flex 3 and the KZ ZSN Pro (with Mic) compare to other earbuds and headphones
Spec Comparison
 |  | |
| JBL Live Flex 3 | KZ ZSN Pro (with Mic) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$216 | $24 | ||
Brand | |||
Brand | JBL | KZ | |
Release Date | |||
Release Date | June 1, 2024 | March 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.1/10 | 7.8/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.3/10 | 5.1/10 | |
Gaming Score | |||
Gaming Score | 5.5/10 | 8/10 | |
TV and Video Score | |||
TV and Video Score | 5.8/10 | 7.5/10 | |
Exercise Score | |||
Exercise Score | 8.4/10 | 4.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 10 Hours | N/A | |
Wireless charging | |||
Wireless charging | Yes | N/A | |
Charging time | |||
Charging time | 2 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.3 | N/A | |
Case Battery Life | |||
Case Battery Life | 40 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.4/10 | 5.3/10 | |
Virtual Surround | |||
Virtual Surround | Yes | N/A | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | 7/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 7/10 | 7.6/10 | |
Size | |||
Size | Large | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 8.8 Grams | 7 Grams | |
Microphone style | |||
Microphone style | Integrated | In-Line | |
Shopping
KZ ZSN Pro (with Mic)
See more
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 Live Flex 3 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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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.
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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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