Sennheiser HD1 In-Ear / Momentum In-Ear vs IE 40 PRO

Which Headphones Are Better?

Products

Sennheiser HD1 In-Ear / Momentum In-Ear
Sennheiser IE 40 PRO

Tested using Methodology v1.3.1

Updated Aug 07, 2021 12:27 AM

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Amazon.com

Tested using Methodology v1.4

Updated May 17, 2024 03:01 PM

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Sennheiser HD1 In-Ear / Momentum In-Ear Picture

Track

Sennheiser IE 40 PRO Picture

Track

Our Verdict

Sennheiser HD1 In-Ear / Momentum In-Ear

Sennheiser IE 40 PRO

The Sennheiser IE 40 PRO are slightly better critical listening in-ears than the Sennheiser Momentum In-Ear. They are better-built than the Momentum and have slightly better audio reproduction. On the other hand, the Momentum might be more versatile for casual listening thanks to the in-line remote, and their fit blocks more ambient noise, which will be better for commuting and traveling. They also have an in-line microphone for calls that the IE 40 PRO doesn’t have.

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Variants

  • Momentum In-Ear (Android, Black)
  • Momentum In-Ear (Android, Red)
  • IE 40 PRO (Black)
  • IE 40 PRO (Clear)

Check Price

Android, Black
Momentum In-Ear
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Amazon.com
Black
IE 40 PRO
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Amazon.com
Android, Red
Momentum In-Ear
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Amazon.com
Clear
IE 40 PRO
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Amazon.com
iOS, Black
Momentum In-Ear
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Amazon.com
 
iOS, Red
Momentum In-Ear
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Amazon.com
 
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Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 
 

0.0
0.0
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Full Comparison

Design

Style  

Design Picture 2  

Sennheiser HD1 In-Ear / Momentum In-Ear Design Picture 2 Sample

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Sennheiser IE 40 PRO Design Picture 2 Sample

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Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked

Comfort 
 

N/A
N/A

Comfort Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Comfort Picture Sample

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Sennheiser IE 40 PRO 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  

Sennheiser HD1 In-Ear / Momentum In-Ear Controls Picture Sample

SAMPLE

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Sennheiser IE 40 PRO Controls Picture 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 
 

N/A
Locked

Noise Cancelling Control  

N/A
Locked

Talk-Through 
 

N/A
Locked

Additional Controls  

Locked
Locked

Breathability 
 

N/A
N/A

Breathability After Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Breathability After Picture Sample

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Sennheiser IE 40 PRO Breathability After Picture Sample

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Avg.Temp.Difference  

Lock °C
Lock °C

Portability 
 

N/A
N/A

Portability Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Portability Picture Sample

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Sennheiser IE 40 PRO Portability Picture Sample

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Lock"
Lock"

 

Lock"
Lock"

 

Lock"
Lock"

Volume  

Lock in³
Lock in³

Transmitter Required  

N/A
Locked

Case 
 

N/A
N/A

Case Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Case Picture Sample

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Sennheiser IE 40 PRO Case Picture Sample

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Type  

Locked
Locked

 

Lock"
N/A

 

Lock"
N/A

 

Lock"
N/A

Volume  

Lock in³
N/A

Build Quality 
 

N/A
N/A

Build Quality Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Build Quality Picture Sample

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Sennheiser IE 40 PRO Build Quality Picture Sample

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Stability 
 

N/A
N/A

Stability Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Stability Picture Sample

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Sennheiser IE 40 PRO Stability Picture Sample

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Headshots 1  

Angled Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Angled Picture Sample

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Sennheiser IE 40 PRO Angled Picture Sample

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Side Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Side Picture Sample

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Sennheiser IE 40 PRO Side Picture Sample

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Headshots 2  

Front Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Front Picture Sample

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Sennheiser IE 40 PRO Front Picture Sample

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Rear Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Rear Picture Sample

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Sennheiser IE 40 PRO Rear Picture Sample

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Top  

Top Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Top Picture Sample

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Sennheiser IE 40 PRO Top Picture Sample

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In The Box  

In The Box Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear In The Box Picture Sample

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Sennheiser IE 40 PRO In The Box Picture Sample

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Sound

Sound Profile 
 

Frequency Response  

Sennheiser HD1 In-Ear / Momentum In-Ear Frequency Response Sample

SAMPLE

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Sennheiser IE 40 PRO Frequency Response Sample

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Frequency Response  

Sennheiser HD1 In-Ear / Momentum In-Ear Frequency Response Sample

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Sennheiser IE 40 PRO Frequency Response Sample

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Bass Amount 
 

Lock dB
Lock dB

Treble Amount 
 

Lock dB
Lock dB

Frequency Response Consistency 
 

N/A
N/A

Consistency L  

Sennheiser HD1 In-Ear / Momentum In-Ear Consistency L Sample

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Sennheiser IE 40 PRO Consistency L Sample

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Consistency R  

Sennheiser HD1 In-Ear / Momentum In-Ear Consistency R Sample

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Sennheiser IE 40 PRO Consistency R Sample

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Avg. Std. Deviation 
 

Lock dB
Lock dB

Raw Frequency Response 
 

Raw FR L  

Sennheiser HD1 In-Ear / Momentum In-Ear Raw FR L Sample

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Sennheiser IE 40 PRO Raw FR L Sample

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Raw FR L  

Sennheiser HD1 In-Ear / Momentum In-Ear Raw FR L Sample

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Sennheiser IE 40 PRO Raw FR L Sample

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Raw FR R  

Sennheiser HD1 In-Ear / Momentum In-Ear Raw FR R Sample

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Sennheiser IE 40 PRO Raw FR R Sample

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Raw FR R  

Sennheiser HD1 In-Ear / Momentum In-Ear Raw FR R Sample

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Sennheiser IE 40 PRO Raw FR R Sample

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Bass Accuracy 
 

N/A
N/A

Bass  

Sennheiser HD1 In-Ear / Momentum In-Ear Bass Sample

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Sennheiser IE 40 PRO Bass Sample

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Bass  

Sennheiser HD1 In-Ear / Momentum In-Ear Bass Sample

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Sennheiser IE 40 PRO Bass Sample

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Std. Err. 
 

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 Accuracy 
 

N/A
N/A

Mid  

Sennheiser HD1 In-Ear / Momentum In-Ear Mid Sample

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Sennheiser IE 40 PRO Mid Sample

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Mid  

Sennheiser HD1 In-Ear / Momentum In-Ear Mid Sample

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Sennheiser IE 40 PRO Mid Sample

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Std. Err. 
 

Lock dB
Lock dB

Low-Mid 
 

Lock dB
Lock dB

Mid-Mid 
 

Lock dB
Lock dB

High-Mid 
 

Lock dB
Lock dB

Treble Accuracy 
 

N/A
N/A

Treble  

Sennheiser HD1 In-Ear / Momentum In-Ear Treble Sample

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Sennheiser IE 40 PRO Treble Sample

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Treble  

Sennheiser HD1 In-Ear / Momentum In-Ear Treble Sample

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Sennheiser IE 40 PRO Treble Sample

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Std. Err. 
 

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  

Sennheiser HD1 In-Ear / Momentum In-Ear Peaks/Dips Graph Sample

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Sennheiser IE 40 PRO Peaks/Dips Graph Sample

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Peaks/Dips Graph  

Sennheiser HD1 In-Ear / Momentum In-Ear Peaks/Dips Graph Sample

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Sennheiser IE 40 PRO Peaks/Dips Graph Sample

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Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB

Imaging 
 

N/A
N/A

Group Delay  

Sennheiser HD1 In-Ear / Momentum In-Ear Group Delay Sample

SAMPLE

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Sennheiser IE 40 PRO Group Delay Sample

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Phase Response  

Sennheiser HD1 In-Ear / Momentum In-Ear Phase Response Sample

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Sennheiser IE 40 PRO Phase Response Sample

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Weighted Group Delay 
 

Lock
Lock

Weighted Amplitude Mismatch 
 

Lock
Lock

Weighted Frequency Mismatch 
 

Lock
Lock

Weighted Phase Mismatch 
 

Lock
Lock

Passive Soundstage 
 

N/A
N/A

PRTF  

Sennheiser HD1 In-Ear / Momentum In-Ear PRTF Sample

SAMPLE

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Sennheiser IE 40 PRO PRTF Sample

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PRTF Accuracy (Std. Dev.) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A

Openness 
 

0.0
0.0

Acoustic Space Excitation 
 

0.0
0.0

Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage  

Sennheiser HD1 In-Ear / Momentum In-Ear Virtual Soundstage Sample

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Sennheiser IE 40 PRO Virtual Soundstage Sample

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Head Modeling 
 

Locked

Speaker Modeling 
 

Locked

Room Ambience 
 

Locked

Head Tracking 
 

Locked

Virtual Surround 
 

Locked

Weighted Harmonic Distortion 
 

N/A
N/A

Weighted Harmonic Distortion  

Sennheiser HD1 In-Ear / Momentum In-Ear Weighted Harmonic Distortion Sample

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Sennheiser IE 40 PRO Weighted Harmonic Distortion Sample

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WHD @ 90 
 

Lock
Lock

WHD @ 100 
 

Lock
Lock

Test Settings 
 

Firmware 
 

Locked

Power 
 

Locked

Connection 
 

Locked

Codec 
 

Locked

EQ 
 

Locked

ANC 
 

Locked

Tip/Pad 
 

Locked

Microphone 
 

Locked
Isolation

Noise Isolation 
 

N/A
N/A

Noise Isolation  

Sennheiser HD1 In-Ear / Momentum In-Ear Noise Isolation Sample

SAMPLE

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Sennheiser IE 40 PRO Noise Isolation Sample

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Isolation Audio 
 

Overall Attenuation 
 

Lock dB
Lock dB

Noise Cancelling  

Locked
Locked

Bass 
 

Lock dB
Lock dB

Mid 
 

Lock dB
Lock dB

Treble 
 

Lock dB
Lock dB

Leakage 
 

N/A
N/A

Leakage  

Sennheiser HD1 In-Ear / Momentum In-Ear Leakage Sample

SAMPLE

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Sennheiser IE 40 PRO Leakage Sample

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Leakage Audio 
 

Overall Leakage @ 1ft 
 

Lock dB
Lock dB
Microphone

Microphone Style 
 

Integrated 
 

Locked
Locked

In-Line 
 

Locked
Locked

Boom 
 

Locked
Locked

Detachable Boom 
 

N/A
Locked

Mic  

Locked
Locked

Recording Quality 
 

N/A
N/A

Microphone Frequency Response  

Sennheiser HD1 In-Ear / Momentum In-Ear Microphone Frequency Response Sample

SAMPLE

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Sennheiser IE 40 PRO Microphone Frequency Response Sample

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Recorded Speech 
 

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  

Sennheiser HD1 In-Ear / Momentum In-Ear SpNR Sample

SAMPLE

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Sennheiser IE 40 PRO SpNR Sample

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Speech + Pink Noise  

Speech + Subway Noise  

SpNR 
 

Lock dB
N/A
Active Features

Battery 
 

N/A
N/A

Battery Type 
 

N/A
Locked

Continuous Battery Life 
 

N/A
N/A

Additional Charges 
 

N/A
N/A

Total Battery Life 
 

N/A
N/A

Charge Time 
 

N/A
N/A

Power-Saving Feature 
 

N/A
Locked

Audio While Charging 
 

N/A
Locked

Passive Playback 
 

N/A
Locked

Charging Port  

N/A
Locked

App Support 
 

N/A
N/A

App Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear App Picture Sample

SAMPLE

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Sennheiser IE 40 PRO App Picture Sample

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App Name  

N/A
Locked

iOS  

N/A
Locked

Android  

N/A
Locked

macOS  

N/A
Locked

Windows  

N/A
Locked

Equalizer 
 

N/A
Locked

ANC Control 
 

N/A
Locked

Mic Control  

N/A
Locked

Room Effects 
 

N/A
Locked

Playback Control 
 

N/A
Locked

Button Mapping  

N/A
Locked

Surround Sound  

N/A

Surround Support 
 

Locked
Connectivity

Bluetooth 
 

N/A
N/A

Bluetooth Version 
 

N/A
Locked

Multi-Device Pairing 
 

N/A
Locked

NFC Pairing 
 

N/A
Locked

Line Of Sight Range 
 

N/A
N/A

PC Latency (SBC) 
 

N/A
N/A

PC Latency (aptX) 
 

N/A
N/A

PC Latency (aptX HD) 
 

N/A

PC Latency (aptX-LL) 
 

N/A
N/A

iOS Latency 
 

N/A

Android Latency 
 

N/A

Non-Bluetooth Wireless 
 

N/A
N/A

Non-BT Line Of Sight Range 
 

N/A
N/A

Non-BT Latency 
 

N/A
N/A

Wired 
 

N/A
N/A

Cable Picture  

Sennheiser HD1 In-Ear / Momentum In-Ear Cable Picture Sample

SAMPLE

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Sennheiser IE 40 PRO Cable Picture Sample

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Analog Audio 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Detachable  

Locked
Locked

Length  

Lock ft
Lock ft

Connection  

Locked
Locked

Wired Latency 
 

Lock ms

Analog/USB Audio Latency 
 

Lock ms

PC / PS4 Compatibility 
 

PC/PS4 Analog 
 

Locked
Locked

PC/PS4 Wired USB 
 

Locked
Locked

PC/PS4 Non-BT Wireless 
 

Locked
Locked

Xbox One Compatibility 
 

Xbox One Analog 
 

Locked
Locked

Xbox One Wired USB 
 

Locked
Locked

Xbox One Non-BT Wireless 
 

Locked
Locked

Base/Dock 
 

N/A
N/A

Type 
 

N/A
Locked

USB Input 
 

N/A
Locked

Line In 
 

N/A
Locked

Line Out 
 

N/A
Locked

Optical Input 
 

N/A
Locked

RCA Input 
 

N/A
Locked

Dock Charging 
 

N/A
Locked

Power Supply 
 

N/A
Locked

Check Price

Android, Black
Momentum In-Ear
SEE PRICE
Amazon.com
Black
IE 40 PRO
SEE PRICE
Amazon.com
Android, Red
Momentum In-Ear
SEE PRICE
Amazon.com
Clear
IE 40 PRO
SEE PRICE
Amazon.com
iOS, Black
Momentum In-Ear
SEE PRICE
Amazon.com
 
iOS, Red
Momentum In-Ear
SEE PRICE
Amazon.com
 

Sennheiser HD1 In-Ear / Momentum In-Ear

Sennheiser IE 40 PRO

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Sennheiser HD1 In-Ear / Momentum In-Ear vs Sennheiser IE 40 PRO: Main Discussion

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