Headphones and earbuds · Sennheiser
Owners keep the MTW4 for its sound: a big, natural, finely detailed tuning they can personalise in the app, good enough that some stick with it through repeated warranty swaps.
Owners clearly praise the sound. They describe it as large and natural, with smooth mids and clear vocals, and several who compared it side by side with the MTW5 or Technics AZ100 still preferred the MTW4.
Durability is a clear complaint. Owners describe a crackle in one earbud that gets worse until that side stops working, and some are on their third pair or later because of it, including people who say the buds never got wet.
The Sennheiser MOMENTUM True Wireless 4 (MTW4) are wireless earbuds that sit inside the ear and block outside noise. They're for people who want good-sounding earbuds for their commute, travel or daily listening. Sennheiser now lists them as end of life, and its own website no longer sells them.
| Type | True wireless in-ear earbuds |
|---|---|
| Noise cancelling | Adaptive active noise cancellation, plus Transparency mode |
| Battery life | Up to 7.5 hours (earbuds); up to 30 hours with charging case |
| Charging | Qi wireless charging; 8-minute quick charge gives 1 hour of play |
| Bluetooth and codecs | Bluetooth 5.4; lossless audio support; Auracast via firmware update |
| Weight | |
| Water resistance | |
| Warranty |
From the maker's spec page, checked October 6, 2026. A blank row means the maker does not state it.
You get about a full workday of music from the earbuds alone, and the case refills them for about 30 hours in total. If they run flat, 8 minutes in the case gives you an hour of listening. You can charge the case on a wireless charging pad. Lossless and Auracast support only help if your phone or other device supports them too.
Pick up to three. You get a page with just those, side by side, on the subjects owners raised.
After the first weeks, the sound is still the main draw. Owners say they keep coming back to the vocal clarity and the crisp treble, and they like that the flat Sennheiser tuning can be adjusted with Sound Personalization in the app. Battery life gets clear praise too, as something that comfortably covers their day.
Owners are divided on noise cancellation. Some are happy with it, while others who came from Sony or Bose see it as the one real step down. Bass divides them as well: some like how controlled it is, and others want more punch than models like the Denon Perl Pro give. A smaller group find the fit uncomfortable, and opinion on the case is mixed.
When a pair keeps working, the sound holds up. A few owners say their earbuds have lasted two years or more without trouble. The failures follow familiar patterns. One is the growing crackle in a single earbud. The other is connection trouble that gets worse over time: first having to re-pair, then only one bud connecting, and finally no response to resets. Some owners blame sweat or moisture and suggest keeping the earbuds dry. Others say theirs failed without ever getting wet.
Most owners who had a failure either got a warranty replacement or returned the earbuds to the store, and opinions on Sennheiser's support are mixed. Long-term accounts are thin. A handful of owners describe a single pair over a couple of years, but most long-run stories are a series of replacements, so it is hard to say how a typical pair ages.
From 3 owner accounts that said how long they have had it. Own one? Add how long yours has lasted.
Counted from the owners who raised each subject, not from everyone. A subject is judged once at least 4 owners raise it.
24 more subjects came up from fewer than 4 owners each, which is not enough for a fair reading. To see how it stacks up, compare it with another machine.
The same owner, asked again at each point. Fills in as owners answer.
Two questions: how long you have had it, and anything you would like to say about it. Then we ask again as it ages. This helps our mission.
More in headphones and earbuds: Sennheiser Momentum 4, Sony XM6, Sennheiser M5.
Among the 3 owner accounts here that gave a duration, 2 described a failure. Parts named most: battery, driver.
Before you buy one used, ask the seller: how old it is, whether it was ever repaired and by whom, and whether any of the parts above have been replaced. Ask to see it run. A receipt tells you the warranty start date; most makers honour the term only for the first owner.
Public discussions we read and summarised in our own words. Nothing here was submitted to Still Kicks.
Counted from public accounts by people who said they own it, and summarised by Still Kicks in its own words. Not a manufacturer claim, a lab test or an estimate.
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