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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you are on a budget and prefer wireless convenience for activities like air travel or casual listening, the JBL 510BT headphones are suitable and offer features like a foldable design for portability and built-in controls. However, if you prioritize sound quality above all and don't mind spending more, the Thieaudio Monarch Mk II earbuds deliver top-tier audio with the ability to use a detachable cable for a high-fidelity listening experience. The Monarch Mk II also features a more durable build but lacks wireless capabilities and is not optimized for exercise, whereas the budget-friendly JBL 510BT supports everyday use and is sweatproof. 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 510BT
- Good for air travel
Advantages of the Thieaudio Monarch Mk II
- Best in class for music
- Very good for TV and video
- Good for podcasts and audiobooks
Key differences
Music
6.2
9.5
The Thieaudio Monarch Mk II is best in class for music, while the JBL 510BT is only fair.
Gaming
5.4
6.7
The Thieaudio Monarch Mk II is only fair for gaming, while the JBL 510BT is poor.
Podcasts and Audiobooks
5.6
7.9
The Thieaudio Monarch Mk II is good for podcasts and audiobooks, while the JBL 510BT is poor.
TV and Video
5.5
8.8
The Thieaudio Monarch Mk II is very good for TV and video, while the JBL 510BT is poor.
Noise Reduction
5.3
6.0
The Thieaudio Monarch Mk II is only fair for noise reduction, while the JBL 510BT is poor.
Battery
38.0 Hours
N/A
The JBL 510BT has 38 hours of battery life. The Thieaudio Monarch Mk II does not have a battery.
Cost
$30
$999
$0
$100
$200
$300
$400
The JBL 510BT has a price of $30 and the Thieaudio Monarch Mk II costs $999.
Build Quality
6.5
9.0
The Thieaudio Monarch Mk II has excellent build quality, while the JBL 510BT has only fair build quality.
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Key similarities
Phone Calls
5.1
5.1
The JBL 510BT and Thieaudio Monarch Mk II are both poor for phone calls.
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How the JBL 510BT and the Thieaudio Monarch Mk II compare to other earbuds and headphones
Spec Comparison
 |  | |
| JBL 510BT | Thieaudio Monarch Mk II |
GENERAL | |||
|---|---|---|---|
| Price | |||
$30 | $999 | ||
Brand | |||
Brand | JBL | Thieaudio | |
Release Date | |||
Release Date | February 1, 2021 | October 1, 2020 | |
Form Factor | |||
Form Factor | Headphones | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.2/10 | 9.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.2/10 | 5.1/10 | |
Gaming Score | |||
Gaming Score | 5.5/10 | 6.8/10 | |
TV and Video Score | |||
TV and Video Score | 5.6/10 | 8.9/10 | |
Exercise Score | |||
Exercise Score | 5.8/10 | 4.5/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 38 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 2 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | No | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 6.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 5.5/10 | 7.6/10 | |
Size | |||
Size | N/A | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 158.7 Grams | 9 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Shopping
JBL 510BT
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Dig into reviews and images
SoundGuys
Sam Smart | September 2023
"The JBL Tune 510BT is affordable and compact, making it a great companion for a commute, so long as you don't need active noise canceling. If you wear glasses or have ear piercings, the on-ear design might not be comfortable, since the ear cups will squish your ears."
Thieaudio Monarch Mk II
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Dig into reviews and images
Audiophile On
Audiophile On | August 2021
"No other earphone I have listened to in the past 12 months has given me as much joy as the Thieaduio Monarch MKII. One of those IEMs will make you question where we can go from here. The sound is jaw-dropping, leaving you wanting more and more. It makes you want to run through your entire music library and reevaluate. It makes you not feel bad about paying full price for them, especially in a hobby where buyers' remorse is genuine. For me, it's top tier, rivaled by a few but not surpassed."
Get a great deal on the JBL 510BT or the Thieaudio Monarch Mk II
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 Thieaudio
Thieaudio is the in-house brand of Linsoul Audio, a Chinese earbud and headphone retailer specializing in what the community lovingly calls Chi-fi, that is high fidelity brands out of China. Thieaudio was established in 2019 as the creative engineering branch of Linsoul. As of today, they market three different lines of earbuds, Voyager, Legacy and the extremely well-received Monarch.
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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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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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