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  1. Home
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Sony INZONE Buds Truly Wireless vs INZONE E9

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 AspectsTest 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 Compatibility
    Comments

Products

Sony INZONE Buds Truly Wireless
Sony INZONE E9

Tested using Methodology v2.3

Updated Sep 25, 2026 06:07 PM

SEE PRICE
BestBuy.com

Tested using Methodology v2.3

Updated Sep 25, 2026 06:09 PM

SEE PRICE
BestBuy.com
Sony INZONE Buds Truly Wireless Picture

Track

Sony INZONE E9 Picture

Track

TypeIn-ear
Noise CancellingYes
EnclosureClosed-Back
Bass Amount
Slightly Emphasized (2 dB)
WirelessTruly Wireless
Treble Amount
Balanced (0 dB)
MicYes
Sound Signature
Warm
TypeIn-ear
Noise CancellingNo
EnclosureClosed-Back
Bass Amount
Slightly Underemphasized (-1 dB)
WirelessNo
Treble Amount
Slightly Underemphasized (-3 dB)
MicNo
Sound Signature
Warm

Our Verdict

Sony INZONE Buds Truly Wireless

Sony INZONE E9

The Sony INZONE Buds Truly Wireless and Sony INZONE E9 are both in-ears, but one is wireless while the other is wired. The wireless INZONE Buds have on-board active noise cancellation, which provides you with better reduction of bassy noise like engines. However, the INZONE E9 have a solid in-ear seal thanks to their foam ear tips, so they reduce more high-frequency noise like children crying. That said, the INZONE Buds have an integrated mic and capacitive touch controls, along with a USB-C dongle for wireless connectivity. The INZONE E9 don't have a mic, so you'll need to use a dedicated one for in-game comms.

GIFT THIS COMPARISON

0 

Variants

  • INZONE Buds (Black)
  • INZONE Buds (White)
  • INZONE E9 (Black)
  • INZONE E9 (Glass Purple)

Review

See Sony INZONE Buds Truly Wireless Review
See Sony INZONE E9 Review
24 
1 

Check Price

Black
INZONE Buds
SEE PRICE
BestBuy.com
Black
INZONE E9
SEE PRICE
BestBuy.com
White
INZONE Buds
SEE PRICE
BestBuy.com
White
INZONE E9
SEE PRICE
BestBuy.com
 
Glass Purple
INZONE E9
SEE PRICE
Amazon

Main Differences for
Sports And Fitness

Threshold 

0.10

Sports And Fitness 
 

N/A
N/A
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Full Comparison

Sound

Sound Profile 
 

Sound Profile  

Sony INZONE Buds Truly Wireless Sound Profile Sample

SAMPLE

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Sony INZONE E9 Sound Profile Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Consistency L Sample

SAMPLE

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Sony INZONE E9 Consistency L Sample

SAMPLE

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Consistency R  

Sony INZONE Buds Truly Wireless Consistency R Sample

SAMPLE

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Sony INZONE E9 Consistency R Sample

SAMPLE

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Std. Deviation 
 

Lock dB
Lock dB

Raw Frequency Response 
 

Raw FR L  

Sony INZONE Buds Truly Wireless Raw FR L Sample

SAMPLE

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Sony INZONE E9 Raw FR L Sample

SAMPLE

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Raw FR R  

Sony INZONE Buds Truly Wireless Raw FR R Sample

SAMPLE

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Sony INZONE E9 Raw FR R Sample

SAMPLE

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Bass Profile: Target Compliance 
 

N/A
N/A

Bass Profile: Target Compliance  

Sony INZONE Buds Truly Wireless Bass Profile: Target Compliance Sample

SAMPLE

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Sony INZONE E9 Bass Profile: Target Compliance Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Mid-Range Profile: Target Compliance Sample

SAMPLE

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Sony INZONE E9 Mid-Range Profile: Target Compliance Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Treble Profile: Target Compliance Sample

SAMPLE

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Sony INZONE E9 Treble Profile: Target Compliance Sample

SAMPLE

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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 
 

Sony INZONE Buds Truly Wireless Peaks/Dips Graph Sample

SAMPLE

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Sony INZONE E9 Peaks/Dips Graph Sample

SAMPLE

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Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB

Stereo Mismatch 
 

N/A
N/A

Frequency Response Mismatch  

Sony INZONE Buds Truly Wireless Frequency Response Mismatch Sample

SAMPLE

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Sony INZONE E9 Frequency Response Mismatch Sample

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Phase Response Mismatch  

Sony INZONE Buds Truly Wireless Phase Response Mismatch Sample

SAMPLE

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Sony INZONE E9 Phase Response Mismatch Sample

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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  

Sony INZONE Buds Truly Wireless PRTF Sample

SAMPLE

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Sony INZONE E9 PRTF Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Harmonics Levels Sample

SAMPLE

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Sony INZONE E9 Harmonics Levels Sample

SAMPLE

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THD Ratio  

Sony INZONE Buds Truly Wireless THD Ratio Sample

SAMPLE

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Sony INZONE E9 THD Ratio Sample

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WHD @ 94 dB SPL 
 

Lock%
Lock%

WHD @ 104 dB SPL 
 

Lock%
Lock%

Electrical Aspects 
 

Impedance  

Sony INZONE Buds Truly Wireless Impedance Sample

SAMPLE

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Sony INZONE E9 Impedance Sample

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Sensitivity @1kHz-1V 
 

N/A
Lock dB SPL

Bluetooth Max SPL 
 

N/A
N/A

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  

Sony INZONE Buds Truly Wireless Design Picture 2 Sample

SAMPLE

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Sony INZONE E9 Design Picture 2 Sample

SAMPLE

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Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked

Comfort 
 

N/A
N/A

Comfort Picture  

Sony INZONE Buds Truly Wireless Comfort Picture Sample

SAMPLE

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Sony INZONE E9 Comfort Picture Sample

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Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs

Controls 
 

N/A
N/A

Controls Picture  

Sony INZONE Buds Truly Wireless Controls Picture Sample

SAMPLE

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Sony INZONE E9 Controls Picture Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Portability Picture Sample

SAMPLE

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Sony INZONE E9 Portability Picture Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Case Picture Sample

SAMPLE

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Sony INZONE E9 Case Picture Sample

SAMPLE

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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  

Sony INZONE Buds Truly Wireless Build Quality Picture Sample

SAMPLE

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Sony INZONE E9 Build Quality Picture Sample

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Stability 
 

N/A
N/A

Stability Picture  

Sony INZONE Buds Truly Wireless Stability Picture Sample

SAMPLE

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Sony INZONE E9 Stability Picture Sample

SAMPLE

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Headshots 1  

Angled Picture  

Sony INZONE Buds Truly Wireless Angled Picture Sample

SAMPLE

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Sony INZONE E9 Angled Picture Sample

SAMPLE

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Side Picture  

Sony INZONE Buds Truly Wireless Side Picture Sample

SAMPLE

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Sony INZONE E9 Side Picture Sample

SAMPLE

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Headshots 2  

Front Picture  

Sony INZONE Buds Truly Wireless Front Picture Sample

SAMPLE

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Sony INZONE E9 Front Picture Sample

SAMPLE

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Rear Picture  

Sony INZONE Buds Truly Wireless Rear Picture Sample

SAMPLE

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Sony INZONE E9 Rear Picture Sample

SAMPLE

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Top  

Top Picture  

Sony INZONE Buds Truly Wireless Top Picture Sample

SAMPLE

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Sony INZONE E9 Top Picture Sample

SAMPLE

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In The Box  

In The Box Picture  

Sony INZONE Buds Truly Wireless In The Box Picture Sample

SAMPLE

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Sony INZONE E9 In The Box Picture Sample

SAMPLE

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Isolation

Noise Isolation - Full Range 
 

N/A
N/A

Noise Isolation - Full Range Graph  

Sony INZONE Buds Truly Wireless Noise Isolation - Full Range Graph Sample

SAMPLE

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Sony INZONE E9 Noise Isolation - Full Range Graph Sample

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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  

Sony INZONE Buds Truly Wireless Noise Isolation - Common Scenarios Graph Sample

SAMPLE

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Sony INZONE E9 Noise Isolation - Common Scenarios Graph Sample

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Airplane Noise Attenuation 
 

Lock dB
Lock dB

Airplane Noise Isolation Audio 
 

Join Now
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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
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Male Voice 1 
 

Join Now
Join Now

Female Voice 2 
 

Join Now
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Male Voice 2 
 

Join Now
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ANC Wind Handling 
 

ANC Wind Handling Graph  

Sony INZONE Buds Truly Wireless ANC Wind Handling Graph Sample

SAMPLE

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Sony INZONE E9 ANC Wind Handling Graph Sample

SAMPLE

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ANC Wind Noise 
 

Join Now
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Leakage 
 

N/A
N/A

Leakage  

Sony INZONE Buds Truly Wireless Leakage Sample

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Sony INZONE E9 Leakage Sample

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Leakage Audio 
 

Join Now
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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  

Sony INZONE Buds Truly Wireless Microphone Frequency Response Sample

SAMPLE

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Sony INZONE E9 Microphone Frequency Response Sample

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Recorded Speech 
 

Join Now
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LFE 
 

Lock Hz
N/A

FR Std. Dev. 
 

Lock dB
N/A

HFE 
 

Lock Hz
N/A

Weighted THD 
 

Lock
N/A

Gain 
 

Lock dB
N/A

Noise Handling 
 

N/A
N/A

SpNR  

Sony INZONE Buds Truly Wireless SpNR Sample

SAMPLE

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Sony INZONE E9 SpNR Sample

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SpNR 
 

Lock dB
N/A

Noise Gate 
 

Locked
Locked

Speech + Pink Noise Handling 
 

0.0
N/A

Speech + Pink Noise Audio Sample  

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Speech + Subway Noise Handling 
 

0.0
N/A

Speech + Subway Noise Audio Sample  

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Active Features

Battery 
 

N/A
N/A

Battery Type 
 

Locked
Locked

Continuous Battery Life 
 

Lock hrs
N/A

Additional Charges 
 

Lock
N/A

Total Battery Life 
 

Lock hrs
N/A

Charge Time 
 

Lock hrs
N/A

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  

Sony INZONE Buds Truly Wireless App Picture Sample

SAMPLE

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Sony INZONE E9 App Picture Sample

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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

Playback Control 
 

Locked
Locked

Button Mapping  

Locked
Locked

Virtual Surround 
 

Locked
Locked
Connectivity

Wired Connection 
 

N/A
N/A

Cable Picture  

Sony INZONE Buds Truly Wireless Cable Picture Sample

SAMPLE

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Sony INZONE E9 Cable Picture Sample

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Analog Audio 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Detachable 
 

Locked
Locked

Length 
 

N/A
Lock ft (Lock m)

Connector 
 

Locked
Locked

Latency - Analog 
 

N/A
Lock ms

Latency - USB 
 

N/A
Lock ms

Recorded Latency 
 

Join Now
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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

Latency - SBC 
 

N/A
N/A

Latency - aptX Adaptive (High Quality) 
 

N/A
N/A

Latency - aptX Adaptive (Low Latency) 
 

N/A
N/A

Latency - LDAC 
 

N/A
N/A

Recorded Latency 
 

Join Now
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Recorded Latency Codec  

N/A
Locked

AAC Support 
 

Locked
Locked

Wireless Connection (Dongle) 
 

N/A
N/A

Line Of Sight Range 
 

Lock ft (Lock m)
N/A

Latency - Dongle 
 

Lock ms
N/A

Recorded Latency 
 

Join Now
Join Now

PC Compatibility 
 

Analog 
 

Locked
Locked

Wired USB 
 

Locked
Locked

Non-BT Wireless 
 

Locked
Locked

PlayStation Compatibility 
 

PS5 Analog 
 

Locked
Locked

PS5 Wired USB 
 

Locked
Locked

PS5 Non-BT Wireless 
 

Locked
Locked

Xbox Compatibility 
 

Xbox Series X|S Analog 
 

Locked
Locked

Xbox Series X|S Wired USB 
 

Locked
Locked

Xbox Series X|S Non-BT Wireless 
 

Locked
Locked

Check Price

Black
INZONE Buds
SEE PRICE
BestBuy.com
Black
INZONE E9
SEE PRICE
BestBuy.com
White
INZONE Buds
SEE PRICE
BestBuy.com
White
INZONE E9
SEE PRICE
BestBuy.com
 
Glass Purple
INZONE E9
SEE PRICE
Amazon
Back to Top

Sony INZONE Buds Truly Wireless

Sony INZONE E9

Comments

  1. Comparison
 • Posted 1 month ago

Sony INZONE Buds Truly Wireless vs Sony INZONE E9: Main Discussion

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