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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you prioritize excellent overall sound quality and are willing to pay more for it, the 7hz Timeless earbuds could be the better choice; however, they lack wireless capability, active noise canceling, and are not as convenient for calls and meetings due to poor mic quality. In contrast, the JBL Live 670NC headphones offer good comfort, wireless connectivity, active noise canceling, and are optimized for longer battery life, making them suitable for travel and various tasks like calls or meetings. They are less expensive, but their sound quality is considered poorer compared to the 7hz Timeless. Choose JBL if budget and versatility are priorities; opt for 7hz Timeless if sound quality in music is your top consideration. 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 7hz Timeless
- Very good for music
- Good for TV and video
Advantages of the JBL Live 670NC
- Good for phone calls
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Music
8.6
6.5
The 7hz Timeless is very good for music, while the JBL Live 670NC is only fair.
Gaming
6.6
5.4
The 7hz Timeless is only fair for gaming, while the JBL Live 670NC is poor.
Phone Calls
4.3
7.4
The JBL Live 670NC is good for phone calls, while the 7hz Timeless is poor.
Podcasts and Audiobooks
6.8
8.6
The JBL Live 670NC is very good for podcasts and audiobooks, while the 7hz Timeless is only fair.
TV and Video
7.8
5.5
The 7hz Timeless is good for TV and video, while the JBL Live 670NC is poor.
Noise Reduction
5.3
6.7
The JBL Live 670NC is only fair for noise reduction, while the 7hz Timeless is poor.
Battery
N/A
65.0 Hours
The 7hz Timeless does not have a battery. The JBL Live 670NC has 65 hours of battery life.
Cost
$200
$100
$50
$100
$150
$200
$250
$300
The 7hz Timeless has a price of $200 and the JBL Live 670NC costs $100.
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Key similarities
Build Quality
8.5
8.0
The 7hz Timeless and JBL Live 670NC both have very good build quality.
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How the 7hz Timeless and the JBL Live 670NC compare to other earbuds and headphones
Spec Comparison
 |  | |
| 7hz Timeless | JBL Live 670NC |
GENERAL | |||
|---|---|---|---|
| Price | |||
$200 | $100 | ||
Brand | |||
Brand | 7hz | JBL | |
Release Date | |||
Release Date | August 1, 2021 | March 1, 2024 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired + Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.6/10 | 6.6/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.3/10 | 7.4/10 | |
Gaming Score | |||
Gaming Score | 6.7/10 | 5.4/10 | |
TV and Video Score | |||
TV and Video Score | 7.8/10 | 5.5/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 6/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 65 Hours | |
Wireless charging | |||
Wireless charging | N/A | No | |
Charging time | |||
Charging time | N/A | 3 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.3 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 6.8/10 | |
Virtual Surround | |||
Virtual Surround | N/A | Yes | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | N/A | 7/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8/10 | |
Comfort score | |||
Comfort score | 7/10 | 7/10 | |
Size | |||
Size | Large | Medium | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5.5 Grams | 217 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
7hz Timeless
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Dig into reviews and images
Headphonesty
Kazi Mahbub Mutakabbir | May 2023
"7Hz picked a bold name for the Timeless and frankly, got very close to justifying their word choice. Most importantly, the Timeless are good to go in stock form, so you don’t have to worry about source-matching and such. I can recommend the 7Hz Timeless to those who do not mind a dash of brightness up top, want a taste of planar in IEM form, and want one of the most resolving pair of earphones in the $150 - $300 price range."
Get a great deal on the 7hz Timeless or the JBL Live 670NC
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.
Jason Lew
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.
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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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