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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you prioritize wireless convenience and active noise cancelling for travel, the JBL Live 670NC would be a better fit; however, they have a shorter cable and aren't optimal for exercise due to their size. On the other hand, if you're looking for a more affordable wired option with better sound isolation for listening in quiet environments, the Sennheiser CX300S could be suitable. Remember though, the JBL offers features like app customization and virtual surround, which the Sennheiser lacks, but the latter is lighter and potentially more comfortable for long listening sessions. 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 670NC
- Good for phone calls
- Very good for air travel
- Very good for podcasts and audiobooks
Advantages of the Sennheiser CX300S
- Good for TV and video
Key differences
Gaming
5.4
6.1
The Sennheiser CX300S is only fair for gaming, while the JBL Live 670NC is poor.
Phone Calls
7.4
3.0
The JBL Live 670NC is good for phone calls, while the Sennheiser CX300S is poor.
Podcasts and Audiobooks
8.6
4.7
The JBL Live 670NC is very good for podcasts and audiobooks, while the Sennheiser CX300S is poor.
TV and Video
5.5
7.3
The Sennheiser CX300S is good for TV and video, while the JBL Live 670NC is poor.
Battery
65.0 Hours
N/A
The JBL Live 670NC has 65 hours of battery life. The Sennheiser CX300S does not have a battery.
Cost
$100
$50
$0
$50
$100
$150
$200
The JBL Live 670NC has a price of $100 and the Sennheiser CX300S costs $50.
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Key similarities
Music
6.5
6.9
The Sennheiser CX300S and JBL Live 670NC are both only fair for music.
Noise Reduction
6.7
7.0
Although they have very similar scores, PerfectRec considers Sennheiser CX300S to be good for noise reduction, while the JBL Live 670NC is only fair.
Build Quality
8.0
8.0
The JBL Live 670NC and Sennheiser CX300S both have very good build quality.
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How the JBL Live 670NC and the Sennheiser CX300S compare to other earbuds and headphones
Spec Comparison
 |  | |
| JBL Live 670NC | Sennheiser CX300S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$100 | $50 | ||
Brand | |||
Brand | JBL | Sennheiser | |
Release Date | |||
Release Date | March 1, 2024 | February 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.6/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 7.4/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 5.4/10 | 6.1/10 | |
TV and Video Score | |||
TV and Video Score | 5.5/10 | 7.4/10 | |
Exercise Score | |||
Exercise Score | 6/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 65 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.3 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 6.8/10 | 7/10 | |
Virtual Surround | |||
Virtual Surround | Yes | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8/10 | 8/10 | |
Comfort score | |||
Comfort score | 7/10 | 7.6/10 | |
Size | |||
Size | Medium | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 217 Grams | 12 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Shopping
Sennheiser CX300S
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Dig into reviews and images
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 JBL Live 670NC or the Sennheiser CX300S
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.
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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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.
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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