Brand | Sennheiser |
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Manufacturer | Sennheiser |
Model Number | 508698 |
Part Number | 508698 |
Special Features | Wireless, Noise-isolation |
Mounting Hardware | Charging cable |
Number Of Items | 1 |
Microphone Form Factor | With_Microphone |
Headphones Form Factor | In Ear |
Power Source | Battery |
Batteries Included | No |
Batteries Required | No |
Battery cell composition | Lithium Polymer |
Wireless Type | Bluetooth |
Connector Type | Wired |
Memory Card Slot | ;; |
Includes Rechargable Battery | Yes |
Includes AC Adapter | No |
Product Dimensions | 78 x 5 x 5 cm; 18.1 Grams |
Item Weight | 18.1 g |
Manufacturer | Sennheiser |
ASIN | B07R5ZZ23C |
Item Model Number | 508698 |
Batteries | 1 Lithium Polymer batteries required. |
Date First Available | 1 July 2019 |
Sennheiser 508698 Sound Momentum Free Headphones Special Edition, Black/ Red
Price: | $264.01 |
Enhance your purchase
Brand | Sennheiser |
Colour | Red/black |
Connector Type | Wired |
Form factor | In Ear |
Connector type | Micro USB for charging |
About this item
- Music and call control; The inline three button remote provides easy music and call control and features a highquality microphone for vocal clarity
- Noise isolation Four sizes of ear adapters are included ensuring a snug and secure fit improving audio performance while effectively blocking ambient noise
- Long battery life; Momentum Free SE delivers up to six hour battery life from a signle USB charge; cable included providing extended wireless listening sessions
- Multi device connectivity convenient multi device connection capability with up to two devices simultaneously phones and computers with voice prompts and 3way call support
Product Information
Technical Details
Additional Information
Customer Reviews |
4.1 out of 5 stars |
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Best Sellers Rank |
16,186 in Electronics (See Top 100 in Electronics)
227 in Over-Ear Headphones |
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Product description
Sennheiser Momentum Free Special Edition Bluetooth Wireless Headphones. Bluetooth 4.2 Wireless Technology, featuring Qualcomm apt X and AAC Advanced Audio Coding delivering enhanced Hi Fi sound, while quality Premium transducers housed in machined stainless steel in ear sound tunnels deliver signature Momentum sound powerful bass response, detailed vocal projection and a great sound stage.
From the manufacturer



Sennheiser is shaping the Future of Audio – a vision built on a 70-year history of innovation and a continued drive for excellence that is woven into our company’s DNA and culture. Around the world, our employees share this passion in the pursuit of the perfect sound, creating products that exceed expectations and set new benchmarks in audio.
Meet the Sennheiser MOMENTUM Free Special Edition
True to the MOMENTUM design and engineering philosophy, the MOMENTUM Free Special Edition in-ear Bluetooth headphones deliver outstanding audio quality. Whether enjoying music or taking a call from a friend, you’ll experience sound featuring exceptional clarity, detail and dynamics. Like all MOMENTUM headphones, MOMENTUM Free delivers superior comfort, timeless style and lasting durability.
- Did you know? Like all MOMENTUM headphones, MOMENTUM Free is crafted from premium materials delivering superior comfort, timeless style and lasting durability.
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Signature Sennheiser SoundThe Sennheiser MOMENTUM Free Special Edition features premium transducers housed in machined stainless steel in-ear sound tunnels to deliver signature Momentum sound – exceptional clarity and dynamics with a powerful bass response. |
Cutting-edge Wireless TechnologyThe MOMENTUM Free Special Edition is equipped with the latest wireless transmission technology: Bluetooth 4.2, AAC codec support, and Qualcomm aptX support. Together they ensure exceptional, crystal-clear hi-fi sound. AptX Low Latency technology keeps audio perfectly in sync with visual when videos are being watched. NFC one-touch pairing is also available for supported smart devices. |
Personalised FitFour different sized ear adapters are supplied with MOMENTUM Free Special Edition. This ensures optimum fit contributing significantly to enhance wearing comfort and sound quality. It also improves passive attenuation of ambient noise further upgrading the listening experience. |
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Full Headset FunctionalityA three-button remote and high-quality in-line microphone provides management of phone calls (including three-way calling) and music tracks. Voice prompts inform about incoming calls, device pairing and battery status. Multi-connection with up to two devices at once is also provided. |
Six-Hour Battery LifeThe MOMENTUM Free Special Edition delivers up to six-hour battery life from USB charging (cable included) supporting extended wireless listening sessions. |
Streetwise Style and FeaturesPremium materials including stainless steel and featuring chrome accents highlight exceptional design. Magnetic earpieces elegantly join so MOMENTUM Free Special Edition can be comfortably worn around the neck when not in use. For protection, a luxurious leather is supplied for storage. |
Important information
Safety Information:
Yes
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Customer reviews
Top reviews from Australia
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Top reviews from other countries

Good sound
Excellent build quality
Connects quickly when turned on
Loud
Good quality carrying case
Cons:
My biggest gripe is the ridiculous sizing of earbuds. I tried small and medium and they both cause discomfort. Small is too small and goes way too much in my ear canal, medium is too big and won't stay in for long. No size in between. So if I keep these, I will have to buy some comfortable ones separately.
Poor design, the wires are too long, so you have to tuck them in inside your shirt.
Poor call quality. No noise cancellation from the mic while talking on phone. Picks up every small noise from the surrounding.
Not enough bass. Sound can have very sharp and piercing treble while listening to some songs.
Captune app is absolutely useless. The equaliser in this app is not supported by Spotify, Amazon music, YT music. So you will need a separate app for that.
Weak magnets to keep buds together.
When connected to two devices, and one device shuts off or goes out of range. It will keep on prompting in your ears until you go to that device and turn off Bluetooth properly. My laptop went on sleep mode and I kept on getting these messages every 20 seconds until I turned it back on and turned the Bluetooth off.

Reviewed in the United Kingdom on 11 August 2019
Good sound
Excellent build quality
Connects quickly when turned on
Loud
Good quality carrying case
Cons:
My biggest gripe is the ridiculous sizing of earbuds. I tried small and medium and they both cause discomfort. Small is too small and goes way too much in my ear canal, medium is too big and won't stay in for long. No size in between. So if I keep these, I will have to buy some comfortable ones separately.
Poor design, the wires are too long, so you have to tuck them in inside your shirt.
Poor call quality. No noise cancellation from the mic while talking on phone. Picks up every small noise from the surrounding.
Not enough bass. Sound can have very sharp and piercing treble while listening to some songs.
Captune app is absolutely useless. The equaliser in this app is not supported by Spotify, Amazon music, YT music. So you will need a separate app for that.
Weak magnets to keep buds together.
When connected to two devices, and one device shuts off or goes out of range. It will keep on prompting in your ears until you go to that device and turn off Bluetooth properly. My laptop went on sleep mode and I kept on getting these messages every 20 seconds until I turned it back on and turned the Bluetooth off.


Obwohl Sennheiser draufsteht, eine Marke, die für etwas in meinem Beruf steht, finde ich die Klangqualität der Ohrhörer sehr mittelmäßig.
Es klingt billig, und das Frequenzspektrum ist bei weitem nicht "gerade". Dies mit Kopfhörern wie dem ER4XR von Etymotic Research und dem ATH-M50 von Audio Technica als Referenz.
Auch der Lautstärkeregler ist unklar, es sind Situationen möglich, in denen der Lautstärkeregler nicht einwandfrei funktioniert und zu einer zu leisen Lautstärke führt.
Der Sitz der Gummis lässt etwas zu wünschen übrig, es gibt keinen Satz, der gut abdichtet, ohne zu kneifen.
Jedenfalls macht dies den Kauf einschließlich des Kaufpreises zu einer Enttäuschung, auch wenn der durch die Preissenkung festgelegte Preis günstiger ist als die übliche unverbindliche Preisempfehlung.

Finally I decided to associate with senheiser after a long time and I added this device to my inventory along with OnePlus Wireless and Bose Quietcontrol 30. The major attraction for me is the pricing range of an elegant looking branded headset which came into sales on Black Friday.
I am damn sure 70 pounds for a senheiser device is a damn good price. So everything is suprb until it reaches my hand. My hand is familiar with OnePlus and Bose, when we take it in our hand we can feel the strength and builtquality and the finishing of the product. Unfortunately this senheiser doesn't have that feel. Compare to my other sets it just like a plastic toy. Poor built quality , not having a perfect sit in ears (that may be my ear's problem) and the magnets doesn't have strength to hold the buds each other. So the first impression itself it loose 4 stars out of 5. Giving 1 star for an elegant design and color combination. If we look into sound quality it is another disaster. Nowhere near to my existing devices and 15 pounds senheiser normal headsets.
I just tried to accommodate her but after 7 days I decided it is not my product and I returned the same. For a beginner it may be just ok product. But those who have fantastic experience with some good devices already can't afford this

The noise cancellation is great, blocks out almost all other sounds other that from the Earbuds.. the sound is rich and warm and they can go louder than you should really listen to in an earbud.
There is only two drawbacks to these in my opinion... one is the placement and weight of the battery in the chord.i have found it difficult to positioning a way that does not cause it to pull on the right earbud and pull it out over time... and the second is the charging socket/port/connector.. which ever you want to call it... the used a MicroUSB socket for this, which are known to break over time.. using a USB typeC connector would have been a better option.
