Description
Wherever you are and whatever you’re doing, the Sennheiser MOMENTUM 4 Wireless is geared to be the perfect companion. It features a large 42mm transducer along with active noise cancellation. The 60-hour battery life, inbuilt mic and smart Transparency Mode let you listen to your favourite songs all day, every day.
Feel the Momentum in Your Music
Experience your favourite music like never before with the Sennheiser MOMENTUM 4 Wireless. It is equipped with an audiophile-inspired acoustic system consisting of a 42mm transducer that produces excellent dynamics, clarity, and musicality. You can even customise the sound to fit your taste with the built-in EQ, presets and sound modes.
No Noise, Just Pure Sound
The MOMENTUM 4 Wireless features the latest adaptive noise cancellation technology that adjusts to background noise, allowing you to stay focused and hear every musical detail even in noisy environments. The adaptable Transparency Mode lets you hear external sounds without removing your headphones when you need to listen to announcements or for a quick chat.
Wear it Anytime, Anywhere
The MOMENTUM 4 Wireless’ design is lightweight and includes a padded headband with deep, soft earpads for remarkable, all-day wearing comfort. The low-friction hinge mechanism makes it easy to get a perfect fit without causing too much strain on your head. The inbuilt microphone allows for crystal-clear calls.
Listen Continuously
You can keep listening with a battery life of up to 60 hours and fast charging capabilities that provide an additional 6 hours of listening in just 10 minutes. Smart Pause ensures you won't miss a beat by automatically resuming playback when you put the headphones back on. Auto On/Off conserves energy by turning the headset on when you pick it up and off when it's not in use.
Wearing style: Headband stereo headphones
Ear Coupling: Around-the-ear, circum-aural
Connectivity: Bluetooth 5.2 compliant, class 1, 10 mW (max)
Transmission frequency: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8 DPSK
Supported Profiles: A2DP, AVRCP, HFP
Codecs: SBC, AAC, aptX™, aptX adaptive™
Speaker Type: Dynamic
Transducer principle: 42mm diameter
Speaker frequency range: 6 Hz to 22 kHz
Speaker sensitivity: 106 dB SPL (1 kHz / 0 dB FS)
Total harmonic distortion (THD)
Speaker: <0,3% (1 kHz / 100 dBSPL)
Impedance: Speaker: Active 470 ohms / Passive 60 ohms
Active Noise Cancellation: Hybrid Adaptive ANC
Microphone principle: MEMS
Frequency response (microphone): 50 Hz to 10 kHz
Microphone pick-up pattern: 2 mics per side, beamforming for noise reduction
Battery time: Up to 60 hrs music playtime via Bluetooth and with ANC (test condition: iPhone, mid volume level)
Charging time: Approx. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime; Remark: Ambient temperatures >30°C may lead to extended charging times
Battery type: Built-in Lithium-Ion rechargeable batteries 700 mAh
Power Supply: 5 V⎓, 800 mA max, USB charging via USB-C socket
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
Wherever you are and whatever you’re doing, the Sennheiser MOMENTUM 4 Wireless is geared to be the perfect companion. It features a large 42mm transducer along with active noise cancellation. The 60-hour battery life, inbuilt mic and smart Transparency Mode let you listen to your favourite songs all day, every day.
Feel the Momentum in Your Music
Experience your favourite music like never before with the Sennheiser MOMENTUM 4 Wireless. It is equipped with an audiophile-inspired acoustic system consisting of a 42mm transducer that produces excellent dynamics, clarity, and musicality. You can even customise the sound to fit your taste with the built-in EQ, presets and sound modes.
No Noise, Just Pure Sound
The MOMENTUM 4 Wireless features the latest adaptive noise cancellation technology that adjusts to background noise, allowing you to stay focused and hear every musical detail even in noisy environments. The adaptable Transparency Mode lets you hear external sounds without removing your headphones when you need to listen to announcements or for a quick chat.
Wear it Anytime, Anywhere
The MOMENTUM 4 Wireless’ design is lightweight and includes a padded headband with deep, soft earpads for remarkable, all-day wearing comfort. The low-friction hinge mechanism makes it easy to get a perfect fit without causing too much strain on your head. The inbuilt microphone allows for crystal-clear calls.
Listen Continuously
You can keep listening with a battery life of up to 60 hours and fast charging capabilities that provide an additional 6 hours of listening in just 10 minutes. Smart Pause ensures you won't miss a beat by automatically resuming playback when you put the headphones back on. Auto On/Off conserves energy by turning the headset on when you pick it up and off when it's not in use.
Wearing style: Headband stereo headphones
Ear Coupling: Around-the-ear, circum-aural
Connectivity: Bluetooth 5.2 compliant, class 1, 10 mW (max)
Transmission frequency: 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8 DPSK
Supported Profiles: A2DP, AVRCP, HFP
Codecs: SBC, AAC, aptX™, aptX adaptive™
Speaker Type: Dynamic
Transducer principle: 42mm diameter
Speaker frequency range: 6 Hz to 22 kHz
Speaker sensitivity: 106 dB SPL (1 kHz / 0 dB FS)
Total harmonic distortion (THD)
Speaker: <0,3% (1 kHz / 100 dBSPL)
Impedance: Speaker: Active 470 ohms / Passive 60 ohms
Active Noise Cancellation: Hybrid Adaptive ANC
Microphone principle: MEMS
Frequency response (microphone): 50 Hz to 10 kHz
Microphone pick-up pattern: 2 mics per side, beamforming for noise reduction
Battery time: Up to 60 hrs music playtime via Bluetooth and with ANC (test condition: iPhone, mid volume level)
Charging time: Approx. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime; Remark: Ambient temperatures >30°C may lead to extended charging times
Battery type: Built-in Lithium-Ion rechargeable batteries 700 mAh
Power Supply: 5 V⎓, 800 mA max, USB charging via USB-C socket
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.
You may also like
TRUSTED BY OVER 35K+ MUSIC ENTHUSIAST
Let customers speak for us
from 4836 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