Description
Introducing MOMENTUM True Wireless 4
Experience advanced wireless audio and step into tomorrow with MOMENTUM True Wireless 4, our latest generation of earbuds. Immerse yourself in sound that’s tuned to your hearing and preferences. Discover future-proof features like Auracast™ and LE Audio* with adaptive ANC and up to 30 hours of playtime*.
Sennheiser Signature Sound
MOMENTUM True Wireless 4 delivers exceptional sound fidelity, ensuring every detail and emotion is heard just as the artist intended, thanks to our TrueResponse transducer system. Enjoy high-end sound with impactful bass and refined treble response.
Adaptive Noise Cancellation (ANC)
Our adaptive ANC technology automatically adjusts noise cancellation to your surroundings, providing an immersive listening experience wherever you are.
Future-Proof Technologies
Step into the future with Auracast™ support and LE Audio*, and enjoy the latest codecs with Bluetooth® 5.4 compatibility. These features ensure that your listening experience remains cutting-edge.
All-Day Comfort
Assorted sizes of soft silicon ear tips and fins ensure a comfortable fit for extended listening sessions, making all-day wear effortless and enjoyable.
Sound Personalization
Customize your sound with guided tests for personalized sound profiles, an adaptive 5-band EQ, Sound Zones, Sound Check, or pre-set modes, all available through the Sennheiser Smart Control app.
Extended Battery Life
Enjoy up to 30 hours of playtime with our new battery system and fast Qi wireless charging. Just 8 minutes of charging provides 1 hour of playback, ensuring your earbuds are always ready when you are.
Lossless Audio
Guarantee flawless bit-by-bit transmission of audio, maintaining uncompromised sound quality during wireless listening with up to 24bit/96kHz audio resolution.
Master of Sound
No matter where you are, discover a world of exceptional sound with the highest quality audio sources. Experience music the way the artist intended with the outstanding fidelity of Sennheiser’s TrueResponse transducer system.
Freedom from Noise and Distractions
MOMENTUM True Wireless 4 automatically adjusts noise cancellation to your surroundings, ensuring nothing stands between you and your music. The low-noise, natural-sounding Transparency Mode allows you to stay aware of your surroundings at a touch.
The Future of Listening
Experience the wireless audio of tomorrow with future-proof technology such as Auracast™* and LE Audio*. These features revolutionize the way we share and stream audio.
Designed for All-Day Comfort
The ergonomic design and soft silicon ear tips of MOMENTUM True Wireless 4 provide a secure fit that feels great even over long listening sessions. Enjoy up to 30 hours of listening pleasure with our high-quality battery system and quick charging feature.
Smart Connectivity
MOMENTUM True Wireless 4 makes every moment of listening, every conversation, and every interaction rewarding. Automatically connect your devices as soon as you take them out of the case, control via a customizable touch interface, and charge wirelessly with Qi charging. Seamlessly switch between two connected devices with multipoint connectivity.
Naturally Effortless Communication
The high-quality 6-mic system ensures you can be heard perfectly during calls, even in noisy environments. Call virtualization simulates the feeling of face-to-face conversations, reducing fatigue.
Timeless Design and Sennheiser Quality
MOMENTUM True Wireless 4 matches progressive features with timeless, finely crafted design and Sennheiser quality. Available in Black Graphite, White Silver, and Black Copper, their minimalist aesthetic is elevated by premium materials such as textile and metallic finishes.
Smart Control App
Download the Sennheiser Smart Control app to customize your sound using Sound Personalization, the 5-band built-in EQ, sound modes, and Sound Zones, and enjoy the full experience MOMENTUM True Wireless 4 has to offer.
Wearing style: True wireless stereo earphones
Ear Coupling: Ear canal
Connectivity: Bluetooth 5.4 compliant, class 1, 10 mW (max); Bluetooth Classic and Bluetooth LE Audio supported
Transmission frequency / modulation: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8DPSK
Supported Profiles: A2DP, AVRCP, HFP, TMAP, PBP
Supported codecs: SBC, AAC, aptX™, aptX™
Adaptive/Lossless, LC3
Speaker principle: Dynamic
Speaker type/size: TrueResponse™ dynamic, 7mm diameter
Speaker frequency range: 5 Hz to 21 kHz
Speaker sensitivity: 107 dB SPL (1 kHz / 1 mW)
Speaker THD: <0,08% (1 kHz / 94 dB)
Active Noise Cancellation: Hybrid Adaptive ANC
Mic principle: MEMS
Mic frequency range: 100 Hz to 10 kHz
Mic pick-up pattern: 3 mics per earbud, beamforming for noise reduction
Battery lifespan: Up to 7.5 hrs music playtime with earbuds (ANC off); Up to 7.0 hrs music playtime with earbuds (ANC on) Up to 30 hrs overall music playtime with charging case (test condition: iPhone, mid volume level 85 dB)
Battery type: Built-in Lithium-Ion rechargeable batteries; Left/right earbud: 75 mAh, charging case: 820 mAh
Power Supply: 5 V⎓, 1000 mA max; USB charging via USB-C socket at charging case; Qi Wireless charging
Magnetic strength field: Earbuds: 0.95 mT, charging case: 105 mT
Weather resistance: IP54, dust and splash resistant (earbuds only)
Product Specification: 72.4 g (both earbuds and charging case) 6.2 g (single earbud) 66.4 g (charging case) 70,1 x 44,6 x 34.8 mm (earbuds and charging case)
Operating condition: Operating temp: 0 to +40°C; Charging temp: 5 to 35°C Rel. humidity 25 to 75%, non-condensing
Storage condition: Temp: –20 to +60°C; Rel. humidity 10 to 90%
App support: Sennheiser Smart Control app for iOS™ and Android™
In The Box
Sennheiser MOMENTUM True Wireless 4 Noise-Canceling Earbuds (Black Copper)
Wireless Charging Case
USB-C Charging Cable
Silicone Ear Adapter Sets (XS, S, M, L)
Silicone Ear Fin Sets (S, M, L)
Limited 2-Year Manufacturer Warranty
Warranty Period: 2 Year from the date of Invoice
Covered: Manufacturing Defects Only
Website: https://en-in.sennheiser.com/service-support-contact-service-centers-in-india
Contact No: 1800 22 36 32
Email Id: in-info@sennheiser.com
Sennheiser is a well-known brand in the audio industry. They offer a wide range of products catering to both audiophiles and casual listeners. Their products include open back and closed back audiophile headphones, in-ear monitors, ANC headphones, and true wireless earbuds. They are known for their exceptional sound quality and durability. Whether you're a professional musician or just a music enthusiast, Sennheiser has something for everyone.
Description
Introducing MOMENTUM True Wireless 4
Experience advanced wireless audio and step into tomorrow with MOMENTUM True Wireless 4, our latest generation of earbuds. Immerse yourself in sound that’s tuned to your hearing and preferences. Discover future-proof features like Auracast™ and LE Audio* with adaptive ANC and up to 30 hours of playtime*.
Sennheiser Signature Sound
MOMENTUM True Wireless 4 delivers exceptional sound fidelity, ensuring every detail and emotion is heard just as the artist intended, thanks to our TrueResponse transducer system. Enjoy high-end sound with impactful bass and refined treble response.
Adaptive Noise Cancellation (ANC)
Our adaptive ANC technology automatically adjusts noise cancellation to your surroundings, providing an immersive listening experience wherever you are.
Future-Proof Technologies
Step into the future with Auracast™ support and LE Audio*, and enjoy the latest codecs with Bluetooth® 5.4 compatibility. These features ensure that your listening experience remains cutting-edge.
All-Day Comfort
Assorted sizes of soft silicon ear tips and fins ensure a comfortable fit for extended listening sessions, making all-day wear effortless and enjoyable.
Sound Personalization
Customize your sound with guided tests for personalized sound profiles, an adaptive 5-band EQ, Sound Zones, Sound Check, or pre-set modes, all available through the Sennheiser Smart Control app.
Extended Battery Life
Enjoy up to 30 hours of playtime with our new battery system and fast Qi wireless charging. Just 8 minutes of charging provides 1 hour of playback, ensuring your earbuds are always ready when you are.
Lossless Audio
Guarantee flawless bit-by-bit transmission of audio, maintaining uncompromised sound quality during wireless listening with up to 24bit/96kHz audio resolution.
Master of Sound
No matter where you are, discover a world of exceptional sound with the highest quality audio sources. Experience music the way the artist intended with the outstanding fidelity of Sennheiser’s TrueResponse transducer system.
Freedom from Noise and Distractions
MOMENTUM True Wireless 4 automatically adjusts noise cancellation to your surroundings, ensuring nothing stands between you and your music. The low-noise, natural-sounding Transparency Mode allows you to stay aware of your surroundings at a touch.
The Future of Listening
Experience the wireless audio of tomorrow with future-proof technology such as Auracast™* and LE Audio*. These features revolutionize the way we share and stream audio.
Designed for All-Day Comfort
The ergonomic design and soft silicon ear tips of MOMENTUM True Wireless 4 provide a secure fit that feels great even over long listening sessions. Enjoy up to 30 hours of listening pleasure with our high-quality battery system and quick charging feature.
Smart Connectivity
MOMENTUM True Wireless 4 makes every moment of listening, every conversation, and every interaction rewarding. Automatically connect your devices as soon as you take them out of the case, control via a customizable touch interface, and charge wirelessly with Qi charging. Seamlessly switch between two connected devices with multipoint connectivity.
Naturally Effortless Communication
The high-quality 6-mic system ensures you can be heard perfectly during calls, even in noisy environments. Call virtualization simulates the feeling of face-to-face conversations, reducing fatigue.
Timeless Design and Sennheiser Quality
MOMENTUM True Wireless 4 matches progressive features with timeless, finely crafted design and Sennheiser quality. Available in Black Graphite, White Silver, and Black Copper, their minimalist aesthetic is elevated by premium materials such as textile and metallic finishes.
Smart Control App
Download the Sennheiser Smart Control app to customize your sound using Sound Personalization, the 5-band built-in EQ, sound modes, and Sound Zones, and enjoy the full experience MOMENTUM True Wireless 4 has to offer.
Wearing style: True wireless stereo earphones
Ear Coupling: Ear canal
Connectivity: Bluetooth 5.4 compliant, class 1, 10 mW (max); Bluetooth Classic and Bluetooth LE Audio supported
Transmission frequency / modulation: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8DPSK
Supported Profiles: A2DP, AVRCP, HFP, TMAP, PBP
Supported codecs: SBC, AAC, aptX™, aptX™
Adaptive/Lossless, LC3
Speaker principle: Dynamic
Speaker type/size: TrueResponse™ dynamic, 7mm diameter
Speaker frequency range: 5 Hz to 21 kHz
Speaker sensitivity: 107 dB SPL (1 kHz / 1 mW)
Speaker THD: <0,08% (1 kHz / 94 dB)
Active Noise Cancellation: Hybrid Adaptive ANC
Mic principle: MEMS
Mic frequency range: 100 Hz to 10 kHz
Mic pick-up pattern: 3 mics per earbud, beamforming for noise reduction
Battery lifespan: Up to 7.5 hrs music playtime with earbuds (ANC off); Up to 7.0 hrs music playtime with earbuds (ANC on) Up to 30 hrs overall music playtime with charging case (test condition: iPhone, mid volume level 85 dB)
Battery type: Built-in Lithium-Ion rechargeable batteries; Left/right earbud: 75 mAh, charging case: 820 mAh
Power Supply: 5 V⎓, 1000 mA max; USB charging via USB-C socket at charging case; Qi Wireless charging
Magnetic strength field: Earbuds: 0.95 mT, charging case: 105 mT
Weather resistance: IP54, dust and splash resistant (earbuds only)
Product Specification: 72.4 g (both earbuds and charging case) 6.2 g (single earbud) 66.4 g (charging case) 70,1 x 44,6 x 34.8 mm (earbuds and charging case)
Operating condition: Operating temp: 0 to +40°C; Charging temp: 5 to 35°C Rel. humidity 25 to 75%, non-condensing
Storage condition: Temp: –20 to +60°C; Rel. humidity 10 to 90%
App support: Sennheiser Smart Control app for iOS™ and Android™
In The Box
Sennheiser MOMENTUM True Wireless 4 Noise-Canceling Earbuds (Black Copper)
Wireless Charging Case
USB-C Charging Cable
Silicone Ear Adapter Sets (XS, S, M, L)
Silicone Ear Fin Sets (S, M, L)
Limited 2-Year Manufacturer Warranty
Warranty Period: 2 Year from the date of Invoice
Covered: Manufacturing Defects Only
Website: https://en-in.sennheiser.com/service-support-contact-service-centers-in-india
Contact No: 1800 22 36 32
Email Id: in-info@sennheiser.com
Sennheiser is a well-known brand in the audio industry. They offer a wide range of products catering to both audiophiles and casual listeners. Their products include open back and closed back audiophile headphones, in-ear monitors, ANC headphones, and true wireless earbuds. They are known for their exceptional sound quality and durability. Whether you're a professional musician or just a music enthusiast, Sennheiser has something for everyone.
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TRUSTED BY OVER 35K+ MUSIC ENTHUSIAST
Let customers speak for us
from 4835 reviewsAs a v16 owner this is a worthy upgrade .
Fit :
The iem is designed aesthetically that it fits like custom made
Sound impressions :
Treble is perfectly done with being sibilant, Mids sounds very organic and clear, Bass is the best part here it's a step up from their previous flagship v16.
Staging is better and so is the resolution, A total flagship level iem which punches above the price tag
Thanks to Pritam for his exceptional customer service and deal .
Definitely recommended

Have a great features and I am very happy after buying this m71 thanks audio store 🙏🙏

Time Spent with this DAP is more than 50 days, used many IEMs from Budget range to high end.
OBSERVATION & EXPERIENCE SO FAR.
- Wide soundstage, it's creating a spacious listening experience.
- Smooth and refined sound, with good bass & trebles. I liked it.
- little high Volume doesn't hurt ears because of spaciousness which this DAP creates.
- Main unique point is Vocals & Instruments separation, it's best.
- So far, I noticed Battery back up is really good. Will check it over time and provide feedback.
- Does not get warm that too after using for hours.
- Best software & Shanling Music app, it's very fast ( I use 1TB fully loaded Micro SD card.)
Please Note - Little more care is needed while handling as it has Glass tubes. Again it's unique offering & tubes makes music more enjoyable.
CONS-
1. Charging time ( it will get solve by software updates in future, Brand has co
nfirmed it in their post)
2. Only one colour option is available from Brand.
3. Some settings currently not present, Brand may add in future updates ( DSD gain Compensation, PEQ, MSEB, Night light short cut in quick pannel)
CONCLUSION-
a. Highly recommend those who want detailed & immersive experience.
b. THREE IN ONE- One DAP but three modes, all three sounds differently. One mode Transistor (without Tubes) and two Tube modes (Triode & Ultra- linear).

Sterdy & beautiful cable. I am using it with Hidiz MP145 Planner Magnetic IEM. It add details to music over stock cable. Makes all aspect of sound quality better.

I am writing review after One month regularly uses with my two DAP - Shanling M8t, Hiby R4.
POSITIVES-
1. Best Soundstage
2. Balanced sound
3. Musical & Makes music more enjoyable to ears.
4. No fatigue despite of metal construct.
5. Weight distribution is really good.
6. Largest Magnetic planner in the Category.
7. Details & instruments separation at best.
CONS-
1. Small ears may face challenge. Plz contact team ATS before purchase. Normal ear size, No issues with fit & long usage.
2. Stock cable is good but doesn't suit this IEM.
I am using this with Divinus Auram cable, which goes really well with this by appearance as well as by performance.
CONCLUSION-
1. Very very happy with the purchase. It's my main IEM in daily music journey.
2. My suggestion is Music enthusiast must have atleast one 'Planner Magnetic IEM', believe me I found that the the songs which I am listening since decades are sounding differently with some more details with this IEM.

The KZ Castor is an excellent choice for budget audiophiles. It delivers superb sound quality that rivals much more expensive headphones, with clear highs, rich mids, and deep bass. The build quality is solid, offering both durability and comfort for long listening sessions. At its price, it’s a fantastic value, outperforming many premium options. Highly recommended!

i think it's a great choice for someone who's just starting with the "iem" audiophile thing and it sounds good pretty good for the price range, it's sound clear and crisp, the bass is a little on the lower side but nonetheless great product if you are just starting, oh and yes the delivery was fast got it in a day.

Delivery was fast and item received was in good condition

Lets get to the point, its the best budget IEM!
I have been in the IEM space for more than 6 months and I was looking for a daily driver that can handle rough use, and then Pritam Sir suggested me 7Hz G1. And it failed to disappoint me!
A nice high quality well built iem, with one of the best ergonomic design, and a proper sound isolation with tons of tip to choose from.
The iem is well tuned with proper instrument seperation and clarity, warm tuning with perfect bass and excellent soundstage compared to other budget IEMs.
If you are new to yo IEM and want to buy your first IEM, blindly go with this! Trust me you would not regret! For 3.2k, its a steal deal!
(Pro Tip: Always listen to Pritam Sir's suggestions. He is the G.O.A.T)

We had an amazing experience at The Audio Store. Pritam, the shop expert, was incredibly helpful and knowledgeable. He patiently guided us through the world of in-ear monitors, explaining all the details and helping us understand what would work best for our band, Rhythm Freak. He suggested options that perfectly matched both our budget and our musical needs, making sure we got the best value without compromising on quality. Thanks to his expertise, we walked out confident and satisfied with our purchase. Highly recommend this store to any musician looking for top-notch gear and excellent service

Sound quality ausom but not for base lover's

Top notch earphone Mike quality 🔥.gaming, music etc highly recommend ❤️🎧

I believe this is the best tws under 10000 rupees also it is an iem

Thank you audio store. The sound is amazing. It was delivered within time and product was perfect.

Very detail iem for the price not bass heavy