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  1. Home
  2. Headphones
  3. Compare

CMF Buds Pro 2 vs EarFun Air Pro 4+

Which Headphones Are Better?

    Top
    Main Differences
    Sound
      Sound ProfileFrequency Response ConsistencyRaw Frequency ResponseBass Profile: Target ComplianceMid-Range Profile: Target ComplianceTreble Profile: Target CompliancePeaks/DipsStereo MismatchCumulative Spectral DecayPRTFHarmonic DistortionElectrical AspectsVirtual SoundstageTest Settings
    Design
      StyleComfortControlsPortabilityCaseBuild QualityStabilityHeadshots 1Headshots 2TopIn The Box
    Isolation
      Noise Isolation - Full RangeNoise Isolation - Common ScenariosNoise Isolation - Voice HandlingANC Wind HandlingLeakage
    Microphone
      Microphone StyleRecording QualityNoise Handling
    Active Features
      BatteryApp Support
    Connectivity
      Wired ConnectionBluetooth ConnectionWireless Connection (Dongle)PC CompatibilityPlayStation CompatibilityXbox CompatibilityBase/Dock
    Comments

Products

CMF Buds Pro 2
EarFun Air Pro 4+

Tested using Methodology v2.2

Updated Apr 15, 2026 06:33 PM

SEE PRICE
Amazon

Tested using Methodology v2.2

Updated May 19, 2026 12:33 PM

SEE PRICE
Amazon
CMF Buds Pro 2 Picture

Track

EarFun Air Pro 4+ Picture

Track

TypeIn-ear
Noise CancellingYes
EnclosureClosed-Back
Bass Amount
Very Emphasized (8 dB)
WirelessTruly Wireless
Treble Amount
Slightly Underemphasized (-3 dB)
MicYes
Sound Signature
Boosted Bass
TypeIn-ear
Noise CancellingYes
EnclosureClosed-Back
Bass Amount
Emphasized (4 dB)
WirelessTruly Wireless
Treble Amount
Slightly Underemphasized (-2 dB)
MicYes
Sound Signature
Warm
  1. Recommended in 3 articles:
  2. Earbuds For Phone Calls
  3. Wireless Earbuds Under $100
  4. Earbuds With A Mic

Our Verdict

CMF Buds Pro 2

EarFun Air Pro 4+

The EarFun Air Pro 4+ and the CMF Buds Pro 2 are both feature-packed budget ANC earbuds, but they have different strengths. The EarFun have a more balanced sound out of the box, and they also offer support for a wider range of Bluetooth codecs. On the other hand, the CMF have a longer battery life and a slightly better microphone. Both isolate noise well, so the choice mostly comes down to whether you'd rather have the EarFun's more versatile stock tuning and Bluetooth feature set or the CMF's longer-lasting battery with a superior mic.

GIFT THIS COMPARISON

0 

Variants

  • Buds Pro 2 (Blue)
  • Buds Pro 2 (Dark Grey)
  • Air Pro 4+ (Black)
  • Air Pro 4+ (Blue)

Review

See CMF Buds Pro 2 Review
See EarFun Air Pro 4+ Review
21 
8 

Check Price

Blue
Buds Pro 2
SEE PRICE
Amazon
Blue
Air Pro 4+
SEE PRICE
Amazon
Dark Grey
Buds Pro 2
SEE PRICE
Amazon
Black
Air Pro 4+
SEE PRICE
Amazon
Light Grey
Buds Pro 2
SEE PRICE
Amazon
White
Air Pro 4+
SEE PRICE
Amazon
Orange
Buds Pro 2
SEE PRICE
Amazon
 

Main Differences for
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Full Comparison

Sound

Sound Profile 
 

Sound Profile  

CMF Buds Pro 2 Sound Profile Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Sound Profile Sample

SAMPLE

JOIN NOW

for pictures & test results

Normalization Frequency 
 

Lock Hz
Lock Hz

Bass Amount 
 

Locked
Locked

Treble Amount 
 

Locked
Locked

Sound Signature 
 

Locked
Locked

Frequency Response Consistency 
 

N/A
N/A

Consistency L  

CMF Buds Pro 2 Consistency L Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Consistency L Sample

SAMPLE

JOIN NOW

for pictures & test results

Consistency R  

CMF Buds Pro 2 Consistency R Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ Consistency R Sample

SAMPLE

JOIN NOW

for pictures & test results

Std. Deviation 
 

Lock dB
Lock dB

Raw Frequency Response 
 

Raw FR L  

CMF Buds Pro 2 Raw FR L Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Raw FR L Sample

SAMPLE

JOIN NOW

for pictures & test results

Raw FR R  

CMF Buds Pro 2 Raw FR R Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ Raw FR R Sample

SAMPLE

JOIN NOW

for pictures & test results

Bass Profile: Target Compliance 
 

N/A
N/A

Bass Profile: Target Compliance  

CMF Buds Pro 2 Bass Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Bass Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

RMS Deviation From Target 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

Low Bass 
 

Lock dB
Lock dB

Mid Bass 
 

Lock dB
Lock dB

High Bass 
 

Lock dB
Lock dB

Mid-Range Profile: Target Compliance 
 

N/A
N/A

Mid-Range Profile: Target Compliance  

CMF Buds Pro 2 Mid-Range Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Mid-Range Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

RMS Deviation From Target 
 

Lock dB
Lock dB

Low Mid 
 

Lock dB
Lock dB

Mid-Mid 
 

Lock dB
Lock dB

High Mid 
 

Lock dB
Lock dB

Treble Profile: Target Compliance 
 

N/A
N/A

Treble Profile: Target Compliance  

CMF Buds Pro 2 Treble Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Treble Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

RMS Deviation From Target 
 

Lock dB
Lock dB

Low Treble 
 

Lock dB
Lock dB

Mid Treble 
 

Lock dB
Lock dB

High Treble 
 

Lock dB
Lock dB

Peaks/Dips 
 

N/A
N/A

Peaks/Dips Graph 
 

CMF Buds Pro 2 Peaks/Dips Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Peaks/Dips Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB

Stereo Mismatch 
 

N/A
N/A

Frequency Response Mismatch  

CMF Buds Pro 2 Frequency Response Mismatch Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ Frequency Response Mismatch Sample

SAMPLE

JOIN NOW

for pictures & test results

Phase Response Mismatch  

CMF Buds Pro 2 Phase Response Mismatch Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ Phase Response Mismatch Sample

SAMPLE

JOIN NOW

for pictures & test results

Weighted Amplitude Mismatch 
 

Lock dB
Lock dB

Weighted Frequency Response Mismatch 
 

Lock dB
Lock dB

Weighted Phase Mismatch 
 

Lock°
Lock°

PRTF 
 

N/A
N/A

PRTF  

CMF Buds Pro 2 PRTF Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ PRTF Sample

SAMPLE

JOIN NOW

for pictures & test results

PRTF Accuracy (RMS Deviation) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A

Harmonic Distortion 
 

N/A
N/A

Harmonics Levels  

CMF Buds Pro 2 Harmonics Levels Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Harmonics Levels Sample

SAMPLE

JOIN NOW

for pictures & test results

THD Ratio  

CMF Buds Pro 2 THD Ratio Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ THD Ratio Sample

SAMPLE

JOIN NOW

for pictures & test results

WHD @ 94 dB SPL 
 

Lock%
Lock%

WHD @ 104 dB SPL 
 

Lock%
Lock%

Electrical Aspects 
 

Impedance  

CMF Buds Pro 2 Impedance Sample

SAMPLE

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for pictures & test results

EarFun Air Pro 4+ Impedance Sample

SAMPLE

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for pictures & test results

Sensitivity @1kHz-1V 
 

N/A
N/A

Bluetooth Max SPL 
 

Lock dB
Lock dB

Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage  

CMF Buds Pro 2 Virtual Soundstage Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Virtual Soundstage Sample

SAMPLE

JOIN NOW

for pictures & test results

Head Modeling 
 

Locked
Locked

Speaker Modeling 
 

Locked
Locked

Room Ambience 
 

Locked
Locked

Head Tracking 
 

Locked
Locked

Virtual Surround 
 

Locked
Locked

Test Settings 
 

Firmware 
 

Locked
Locked

Power 
 

Locked
Locked

Connection 
 

Locked
Locked

Codec 
 

Locked
Locked

Test Instrument  

Locked
Locked

EQ 
 

Locked
Locked

ANC 
 

Locked
Locked

Tip/Pad 
 

Locked
Locked

Microphone 
 

Locked
Locked
Design

Style  

Design Picture 2  

CMF Buds Pro 2 Design Picture 2 Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Design Picture 2 Sample

SAMPLE

JOIN NOW

for pictures & test results

Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked

Comfort 
 

N/A
N/A

Comfort Picture  

CMF Buds Pro 2 Comfort Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Comfort Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs

Controls 
 

N/A
N/A

Controls Picture  

CMF Buds Pro 2 Controls Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Controls Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

OS Compatibility 
 

Locked
Locked

Ease Of Use  

Locked
Locked

Feedback  

Locked
Locked

Call/Music Control  

Locked
Locked

Volume Control  

Locked
Locked

Microphone Control  

Locked
Locked

Channel Mixing 
 

Locked
Locked

Noise Cancelling Control  

Locked
Locked

Talk-Through 
 

Locked
Locked

Additional Controls  

Locked
Locked

Portability 
 

N/A
N/A

Portability Picture  

CMF Buds Pro 2 Portability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Portability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

L  

Lock" (Lock cm)
Lock" (Lock cm)

W  

Lock" (Lock cm)
Lock" (Lock cm)

H  

Lock" (Lock cm)
Lock" (Lock cm)

Volume  

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)

Transmitter Required  

Locked
Locked

Case 
 

N/A
N/A

Case Picture  

CMF Buds Pro 2 Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Type  

Locked
Locked

L  

Lock" (Lock cm)
Lock" (Lock cm)

W  

Lock" (Lock cm)
Lock" (Lock cm)

H  

Lock" (Lock cm)
Lock" (Lock cm)

Volume  

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)

Build Quality 
 

N/A
N/A

Build Quality Picture  

CMF Buds Pro 2 Build Quality Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Build Quality Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Stability 
 

N/A
N/A

Stability Picture  

CMF Buds Pro 2 Stability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Stability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Headshots 1  

Angled Picture  

CMF Buds Pro 2 Angled Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Angled Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Side Picture  

CMF Buds Pro 2 Side Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Side Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Headshots 2  

Front Picture  

CMF Buds Pro 2 Front Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Front Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Rear Picture  

CMF Buds Pro 2 Rear Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Rear Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Top  

Top Picture  

CMF Buds Pro 2 Top Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Top Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

In The Box  

In The Box Picture  

CMF Buds Pro 2 In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Isolation

Noise Isolation - Full Range 
 

N/A
N/A

Noise Isolation - Full Range Graph  

CMF Buds Pro 2 Noise Isolation - Full Range Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Noise Isolation - Full Range Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Noise Cancelling  

Locked
Locked

Overall Attenuation 
 

Lock dB
Lock dB

Bass 
 

Lock dB
Lock dB

Mid 
 

Lock dB
Lock dB

Treble 
 

Lock dB
Lock dB

Noise Isolation - Common Scenarios 
 

N/A
N/A

Noise Isolation - Common Scenarios Graph  

CMF Buds Pro 2 Noise Isolation - Common Scenarios Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Noise Isolation - Common Scenarios Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Airplane Noise Attenuation 
 

Lock dB
Lock dB

Airplane Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Office Noise Attenuation 
 

Lock dB
Lock dB

Office Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Street Noise Attenuation 
 

Lock dB
Lock dB

Street Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Noise Isolation - Voice Handling 
 

Female Voice 1 
 

JOIN NOW
JOIN NOW

Male Voice 1 
 

JOIN NOW
JOIN NOW

Female Voice 2 
 

JOIN NOW
JOIN NOW

Male Voice 2 
 

JOIN NOW
JOIN NOW

ANC Wind Handling 
 

ANC Wind Handling Graph  

CMF Buds Pro 2 ANC Wind Handling Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ ANC Wind Handling Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

ANC Wind Noise 
 

JOIN NOW
JOIN NOW

Leakage 
 

N/A
N/A

Leakage  

CMF Buds Pro 2 Leakage Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Leakage Sample

SAMPLE

JOIN NOW

for pictures & test results

Leakage Audio 
 

JOIN NOW
JOIN NOW

Overall Leakage @ 1ft 
 

Lock dB
Lock dB
Microphone

Microphone Style 
 

Integrated 
 

Locked
Locked

In-Line 
 

Locked
Locked

Boom 
 

Locked
Locked

Detachable Boom 
 

Locked
Locked

Mic  

Locked
Locked

Recording Quality 
 

N/A
N/A

Microphone Frequency Response  

CMF Buds Pro 2 Microphone Frequency Response Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Microphone Frequency Response Sample

SAMPLE

JOIN NOW

for pictures & test results

Recorded Speech 
 

JOIN NOW
JOIN NOW

LFE 
 

Lock Hz
Lock Hz

FR Std. Dev. 
 

Lock dB
Lock dB

HFE 
 

Lock Hz
Lock Hz

Weighted THD 
 

Lock
Lock

Gain 
 

Lock dB
Lock dB

Noise Handling 
 

N/A
N/A

SpNR  

CMF Buds Pro 2 SpNR Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ SpNR Sample

SAMPLE

JOIN NOW

for pictures & test results

SpNR 
 

Lock dB
Lock dB

Noise Gate 
 

Locked
Locked

Speech + Pink Noise Handling 
 

0.0
0.0

Speech + Pink Noise Audio Sample  

JOIN NOW
JOIN NOW

Speech + Subway Noise Handling 
 

0.0
0.0

Speech + Subway Noise Audio Sample  

JOIN NOW
JOIN NOW
Active Features

Battery 
 

N/A
N/A

Battery Type 
 

Locked
Locked

Continuous Battery Life 
 

Lock hrs
Lock hrs

Additional Charges 
 

Lock
Lock

Total Battery Life 
 

Lock hrs
Lock hrs

Charge Time 
 

Lock hrs
Lock hrs

Power-Saving Feature 
 

Locked
Locked

Audio While Charging 
 

Locked
Locked

Passive Playback 
 

Locked
Locked

Charging Port  

Locked
Locked

App Support 
 

N/A
N/A

App Picture  

CMF Buds Pro 2 App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

App Name  

Locked
Locked

iOS  

Locked
Locked

Android  

Locked
Locked

macOS  

Locked
Locked

Windows  

Locked
Locked

Equalizer 
 

Locked
Locked

ANC Control 
 

Locked
Locked

Mic Control  

Locked
Locked

Room Effects 
 

Locked
Locked

Playback Control 
 

Locked
Locked

Button Mapping  

Locked
Locked

Surround Support 
 

Locked
Locked
Connectivity

Wired Connection 
 

N/A
N/A

Cable Picture  

CMF Buds Pro 2 Cable Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

EarFun Air Pro 4+ Cable Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Analog Audio 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Detachable 
 

Locked
Locked

Length 
 

N/A
N/A

Connector 
 

Locked
Locked

Latency - Analog 
 

N/A
N/A

Latency - USB 
 

N/A
N/A

Recorded Latency 
 

JOIN NOW
JOIN NOW

Recorded Latency Connection  

Locked
Locked

Bluetooth Connection 
 

N/A
N/A

Bluetooth Version 
 

Locked
Locked

Multi-Device Pairing 
 

Locked
Locked

Quick Pair (Android) 
 

Locked
Locked

Quick Pair (iOS) 
 

Locked
Locked

Line Of Sight Range 
 

Lock ft (Lock m)
Lock ft (Lock m)

Latency - SBC 
 

Lock ms
Lock ms

Latency - aptX 
 

N/A
N/A

Latency - aptX Adaptive (High Quality) 
 

N/A
Lock ms

Latency - aptX Adaptive (Low Latency) 
 

N/A
Lock ms

Latency - LDAC 
 

Lock ms
Lock ms

Recorded Latency 
 

JOIN NOW
JOIN NOW

Recorded Latency Codec  

Locked
Locked

AAC Support 
 

Locked
Locked

Wireless Connection (Dongle) 
 

N/A
N/A

Line Of Sight Range 
 

N/A
N/A

Latency - Dongle 
 

N/A
N/A

Recorded Latency 
 

JOIN NOW
JOIN NOW

PC Compatibility 
 

Analog 
 

Locked
Locked

Wired USB 
 

Locked
Locked

Non-BT Wireless 
 

Locked
Locked

PlayStation Compatibility 
 

PS4 Analog 
 

Locked
Locked

PS4 Wired USB 
 

Locked
Locked

PS4 Non-BT Wireless 
 

Locked
Locked

PS5 Analog 
 

Locked
Locked

PS5 Wired USB 
 

Locked
Locked

PS5 Non-BT Wireless 
 

Locked
Locked

Xbox Compatibility 
 

Xbox One Analog 
 

Locked
Locked

Xbox One Wired USB 
 

Locked
Locked

Xbox One Non-BT Wireless 
 

Locked
Locked

Xbox Series X|S Analog 
 

Locked
Locked

Xbox Series X|S Wired USB 
 

Locked
Locked

Xbox Series X|S Non-BT Wireless 
 

Locked
Locked

Base/Dock 
 

N/A
N/A

Type 
 

Locked
Locked

USB Input 
 

Locked
Locked

Line In 
 

Locked
Locked

Line Out 
 

Locked
Locked

Optical Input 
 

Locked
Locked

RCA Input 
 

Locked
Locked

Dock Charging 
 

Locked
Locked

Power Supply 
 

Locked
Locked

Check Price

Blue
Buds Pro 2
SEE PRICE
Amazon
Blue
Air Pro 4+
SEE PRICE
Amazon
Dark Grey
Buds Pro 2
SEE PRICE
Amazon
Black
Air Pro 4+
SEE PRICE
Amazon
Light Grey
Buds Pro 2
SEE PRICE
Amazon
White
Air Pro 4+
SEE PRICE
Amazon
Orange
Buds Pro 2
SEE PRICE
Amazon
 
Back to Top

CMF Buds Pro 2

EarFun Air Pro 4+

Comments

  1. Comparison
 • Posted 1 month ago

CMF Buds Pro 2 vs EarFun Air Pro 4+: Main Discussion

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