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Sonoflow
Company ProductName Specs




Monarch Mk II
Company ProductName Specs




What we think

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The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·

The 1More Sonoflow has the convenience of both wireless and wired connectivity, which includes a long battery life for extended use without recharging, ideal for active users or those who travel frequently, along with built-in controls for easy adjustments on the go. However, the Thieaudio Monarch Mk II provides superior sound quality and better soundstage, making them more suitable for critical listening and those who prioritize audio fidelity above other features, but they lack wireless capabilities and are built exclusively for wired use. If you're budget-conscious and need versatility including moderate exercise use, the 1More Sonoflow could be your pick, while for an audiophile experience and you don't mind the extra cost, the Thieaudio Monarch Mk II would be a better choice. 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 1More Sonoflow
  • Very 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

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Music

7.2
Sonoflow
Monarch Mk II
9.5
The Thieaudio Monarch Mk II is best in class for music, while the 1More Sonoflow is good.

Gaming

5.3
Sonoflow
Monarch Mk II
6.7
The Thieaudio Monarch Mk II is only fair for gaming, while the 1More Sonoflow is poor.

Podcasts and Audiobooks

6.0
Sonoflow
Monarch Mk II
7.9
The Thieaudio Monarch Mk II is good for podcasts and audiobooks, while the 1More Sonoflow is only fair.

TV and Video

5.7
Sonoflow
Monarch Mk II
8.8
The Thieaudio Monarch Mk II is very good for TV and video, while the 1More Sonoflow is poor.

Noise Reduction

8.3
Sonoflow
Monarch Mk II
6.0
The 1More Sonoflow is very good for noise reduction, while the Thieaudio Monarch Mk II is only fair.

Battery

40.0 Hours
Sonoflow
Monarch Mk II
N/A
The 1More Sonoflow has 40 hours of battery life. The Thieaudio Monarch Mk II does not have a battery.

Cost

$75
Sonoflow
Monarch Mk II
$999
Product image
Product image

$50

$100

$150

$200

$250

$300

$350

$400

The 1More Sonoflow has a price of $75 and the Thieaudio Monarch Mk II costs $999.

Build Quality

8.5
Sonoflow
Monarch Mk II
9.0
The Thieaudio Monarch Mk II has excellent build quality, while the 1More Sonoflow has very good build quality.
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Key similarities

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Phone Calls

5.0
Sonoflow
Monarch Mk II
5.1
The Thieaudio Monarch Mk II and 1More Sonoflow are both poor for phone calls.

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How the 1More Sonoflow and the Thieaudio Monarch Mk II compare to other earbuds and headphones

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Spec Comparison

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1More SonoflowThieaudio Monarch Mk II
1More SonoflowThieaudio Monarch Mk II

GENERAL

Price
$75
$999
Brand
1MoreThieaudio
Release Date
September 1, 2022October 1, 2020
Form Factor
HeadphonesEarbuds
Connectivity
Wired + WirelessWired

SOUND

Music Score
7.2/109.5/10
Phone Calls Score
5/105.1/10
Gaming Score
5.4/106.8/10
TV and Video Score
5.7/108.9/10
Exercise Score
6.3/104.5/10

PERFORMANCE

Battery life
40 HoursN/A
Wireless charging
NoN/A
Charging time
1.3 HoursN/A
Bluetooth version
5N/A

FEATURES

Active Noise Cancelling
YesNo
Noise Reduction Score
8.4/106/10
Virtual Surround
NoN/A
Android App
YesN/A
iOS App
YesN/A
Mic Quality
6/10N/A

BUILD AND DESIGN

Build Quality
8.5/109/10
Comfort score
7.6/107.6/10
Size
N/ALarge
Weight (headset or single earbud)
267.6 Grams9 Grams
Microphone style
IntegratedN/A

Shopping

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1More Sonoflow

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Dig into reviews and images

Headphonics

Michael | January 2023
"The SonoFlow is cheap and fun, without going too far into being overly warm or annoyingly grating, or sharp sounding. The ANC features are lovely with strong app integration and excellent battery life."

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 1More Sonoflow or the Thieaudio Monarch Mk II

About 1More

Music lovers, young or old, frugal or affluent, deserve to hear music as it was meant to be heard, as the artist intended it to be heard. Everyone deserves to hear more. That’s how 1More, a China based company, describes their mission. Their products are all tuned by Luca Bignardi, a sound engineer who’s worked side by side with artists such as Eros Ramazzotti, Laura Pausini and Andrea Bocelli, in an effort to offer premium quality audio devices at midrange prices.

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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Why trust us

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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.

By the numbers

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Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
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Recommendations made
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Consumer hours saved

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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