Wireless Bluetooth Earphones Sennheiser Momentum Free


Tech Specs


– Ear coupling: Ear Canal
– Transducer principle: Dynamic
– Connectivity: Bluetooth 4.2
– Profiles: A2DP + AVRCP + HSP + HFP
– Codec: SBC, AAC, aptX/ aptX LL


– Charging time: Approx. 1.5 hrs
– Charging port: USB Micro Type-B
– Lifespan: 6 hrs (A2DP / HFP)
– Type: Rechargeable (170 mAh)
– Material: Lithium-ion Polymer


– Freq response: 15–22,000Hz
– Impedance: 28Ω (p), 480Ω (a)
– SP level: 118dB (1kHz / 0dBFS)
– THD: (1kHz, 100dB SPL) <0.5%


– Microphone type: MEMS
– Pick-up pattern: Omni-directional
– Sensitivity (121TR 9–5): -44dB V/Pa


– Dimensions (LBH): 105 x 115 x 192mm
– Weight: 192 g

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Sennheiser Momentum Free Bluetooth Earphones packs style and substance into a highly portable design. Equipped with Bluetooth 4.2 and Qualcomm aptX, wireless hi-fi sound is flawlessly delivered while the premium grade ergonomic design ensures an outstanding all-day listening experience.
Momentum Fee offers an integrated microphone, six-hour battery life and a luxurious leather case making it the perfect companion for a mobile lifestyle.

Sound quality

These wireless earphones are not cheap by any measure and so it doesn’t matter how good they look (very good) and how premium they feel (very premium) – they need to sound good. They do.

No matter what you’re listening to – Spotify playlists, podcasts, audiobooks, radio streams, Tidal albums – everything sounds fantastic. Balanced and detailed with just the right amount of punch and crispness. Bass is nice and tight and offers something for everyone – whether you’re a bass head or someone who prefers a more authentic flat sound, the Sennheiser Momentum Free won’t disappoint you. They’re surprisingly well rounded. The midrange is also unusually wholesome and doesn’t give you that disappointing hollow sound you get from products that amp up either the bass, treble or both in the absence of true audio excellence and professional grade calibration.

Pure Precision

The smaller the headphone, the more meticulously built it has to be. From its custom machined stainless steel in-ear sound tunnels for the signature Momentum sound to its luxurious leather carrying case, this is a delight to see, hear and feel. Liberate and enhance your listening experience!


The Frees have an unfussy, simple design, with a single short length of cable running between the earpieces. You can adjust the length via the attached slider, and can choose to run the cable either behind your neck or under your chin.

The In-Ear Wireless, on the other hand, use a chunkier neckband design which sits on the back of your neck. They feel more intrusive, whereas the Frees are more flexible and easier to roll up to stow away in a pocket or bag.

Smooth passage

A premium product in every detail the Momentum Free features custom machined stainless steel in-ear sound tunnels that channel the sound from its high-quality dynamic speaker system losslessly into the ear. Resulting in superior acoustic precision and that satisfying signature Momentum sound with powerful bass response, detailed vocal projection and a great soundstage.

Battery life

The stated battery life on the Momentum Free is 6 hours and my testing just about verified this. They’ll hit 6 hours pretty consistently and they charge from flat to max in about an hour, but don’t expect to get a cheeky extra 30 mins – the 6 hours really is a maximum. You need to be careful how you charge these headphones too – always use the supplied cable. There is absolutely no mention of this in the supplied manual but I managed to kill the first pair I tested by plugging them into a phone wall charger using a third party high capacity USB cable – it killed the battery and my first pair of Free’s never woke from their coma after that.

If you stick to the supplied cable though you won’t have a problem and even a standard USB port on a laptop is powerful enough to charge them up quickly – just 10 mins will give you an hour of charge. There’s no visual battery indicator to speak of but when you’re not playing music if you give a quick tap of the ‘vol down’ button on the clicker a friendly woman will let you roughly how much charge you have, plus when you’re really low the LED will flash orange.

Enhanced gaming

Defying the compact dimensions, Momentum Free is packed with Bluetooth 4.2, AAC codec and Qualcomm apt-X support. Together these ensure crystal clear wireless transmission in true hi-fi sound. Apt-X Low Latency lets you enjoy your videos more by keeping audio perfectly in sync with the visuals.

Ergonomics and battery

As mentioned above, the Momentum Free battery has a capacity of 86 mAh. At first glance it may seem that such a capacity will not be enough and such a small battery is installed only for the sake of compactness and light weight. Practice also showed a confident 6 hours of continuous work at full volume. With a low charge, a voice alert is triggered. In standby mode, the headphones consume a minimum of energy and can lie in the case for a whole day, without being too discharged. Charging is carried out through the USB port installed in the same block as the control buttons.

An average battery charge time is 1.5 hours. The manufacturer recommends charging headphones from the PC. In addition, while charging, Sennheiser Momentum Free can work as full headphones in conjunction with a computer. The only negative point of such use is the lack of codecs. Let me remind you that they are activated only when Bluetooth is connected.

The control buttons have additional functionality, similar to other headsets. So, if you hold down the volume up button for more than 2 seconds, the following composition will turn on, the volume down button works in the same way. The central key allows you to answer the call, and its long hold – to end the call.


Momentum Free offers all the amenities expected of a premium headset, it communicates seamlessly with your mobile device thanks to a three-button remote and high-quality in-line microphone between the earpieces. For ultimate convenience, multi-connection with up to 2 devices at once and 3-way calling support are also provided. An intuitive voice prompt system notifies you about the pairing or battery status.

Listen Longer

Once you listen to the Momentum Free you are not inclined to stop anytime soon. Not least because of the supreme comfort provided by the included ear adapters in four different sizes. Ensuring a snug and secure fit they also block ambient noise effectively. The battery lasts for six long hours of listening pleasure and can be charged via the supplied USB cable.


They’re not wireless ear buds in the same vein as the Apple Airpods – the two buds are connected by a wire which can go either behind or in front of your neck, with an inline clicker on the right and a battery cell on the left. So they sit between that super compact Airpod design and something more like the Sennheiser Momentum In-ear Wireless which uses a neck band to add more battery life.

These earphones will pair with two devices at once so it’s super easy to listen to music through your laptop and then take a call on your phone without disconnecting or popping one of the ears out.

The stainless steel earbuds are magnetised, so when you’re out and about and not using them you are supposed to be able to wear them around your neck without the risk of losing them. The idea is that they stick magnetically together in front of your neck but honestly I found this feature to be sorely lacking – the magnets are simply too weak so even a gentle shake, a very light jog or sometimes no movement at all is enough to detach them. More than once while I was testing they almost fell off my shoulders without me noticing.

Bluetooth 4.2 and and apt-X supply the high quality and power efficient audio connection to your devices – though missing in action are apt-X HD, noise cancellation and NFC pairing. Most people won’t miss these high-end features, and really you can’t expect them with lightweight earphones like this, but it’s worth considering if you absolutely must have the latest features over lightweight portability. Note that some retail listings give NFC as an included feature but this product definitely doesn’t have NFC.

You do get a nice leather zip travel case though and you are going to want to keep these things safe and protected.

Street-smart style

Built with uncompromised craftsmanship from premium materials including stainless steel and featuring chrome accents the Momentum Free is both sturdy and stylish. Well-conceived down to the detail its earpieces are magnetic so you can elegantly join them together and wear them comfortably around your neck when they are not in use. You can also put the Momentum Free in the premium leather carrying case it comes with.

What’s in the box?

  • Wireless Headset
  • USB Charging Cable
  • Ear Adaptor Set (XS, S, M, L)
  • Carrying Case
  • Safety & Quick Guides