Customer Ratings & Reviews

The sennheiser TW4 have sound quality that reminds me of the Sony mX series earbuds. That's not me giving a compliment by the way I left Sony earbuds and headphones a long time ago when I tested them out in the hype that they sound so good based off all the normies telling me so. So little did I know that these people must have hearing damage because I can't stand how they sound. To describe it in terms I would say it sounds muffly and has too much bass and not enough clarity. That's how I would describe the Sony experience in my opinion. Now back to the sennheisers. I'm sad to say that I returned my sennheiser TW3s for these downgraded upgraded versions quote on quote. The sound quality as far as clarity isn't as good, the base somewhat crackles. The wingtips feel harder and a little more uncomfortable. The only thing I could say that is upgrade is the battery life is better, and the copper look looks cooler. Beyond that I'm wrestling if I good jest return these for my previous versions or maybe return these for a different brand that I heard is all so very very good or wait it out until they release new firmware updates that fix the sound. Because it's true that we've all had phones or earbuds you're supposed to let them cook for a couple hours like 20 or so, it's called the "burn in effect". But you know something's off when $60 soundcore a40s sound better than $300 earbuds....

Now overall these earbuds have great hardware built into them some of the best hardware out there but not everyone is going to take full advantage of these earbuds because not all phones support aptx adaptive, HD, and lossless now they have gret battery life, some very strong magnets in the case, great fast charging and a premium build but heres my problem with them there not comfortable atleast for my ears and my phone the samsung galaxy s23 ultra doesnt support all the codecs so to me they dont sound that impressive and the tranceparency mode could be better so for this price i cant recommend your honestly better with the technics az 80s there overall better and pretty much everyone on the android side will be able to take advantage of them because every android phone supports ldac codec with is the codec the technics have so at $300 the technics are overall better and more people will be able to full advantage of them. So the senheizers are going back

Ear buds sound good, the app is cool and has lots of things to help with fit and adjusting sounds. The fit is something you have to adjust and learn where your sweet spot is. Connectivity is ok. Every once in a while i will hear a click like it dropped and reconnected connection. Battery life seems good. I wear them mostly at gym. I have not issues with them staying in. The ANC works ok. Ive had better. The ambient sound is very loud. Even when adjusted high and music on low. The worst part is talking on my phone with them. Nobody can hear me. I have to disconnect from the buds take one out to use my phone. Thinking about taking them back.

I've been a long time Sennheiser fan. I had the Momentum True Wireless 2 and the 3. Their focus on sound quality, features, and build quality kept me as a customer. But these, they didn't do it for me. I was expecting flagship sound quality and ANC given their price and I didn't get either. The AirPods Pro 2 and Sony WF-1000XM5 have better ANC and sound quality with their default profiles. EQ'ing the XM5 made them sound even better. EQ'ing the Momentum caused them to have issues. Increase the bass and the highs took a step back. Increase the highs and the lows would disappear. Sennheiser's bass boost did absolutely nothing, there was no audible difference between it being on or off. Codec support was fine, though I could only ever get standard aptX on my DAP which fully supports aptX HD. It would be nice if we could select the codec in the app instead of just crossing our fingers and hoping for the best. ANC was non-existent. I mean, it's there, but I have $40 earbuds from Soundcore that cancel out the same amount of noise. These support Auracast so you won't miss announcements in airports but it's not needed due to the low level of ANC. Everything from the ticking wall clock in my office, low hum of my tower fan, and the person in the office next to mine were all audible while playing music with ANC enabled. The fit on these is fine. I didn't need the included wing tips, even while exercising. I did need to bump down to the medium small ear tips. Sennheiser did include an assortment of ear tips. These have a deep fit, similar to IEMs. I found the smallest wing tip (one with an actual bump) hurt my ear after a while. Connectivity was terrible for flagship earbuds. Sennheiser made it so one earbud is the source to another and the earbuds will automatically determine which one has the better connection to a source device. I experienced skipping with my Android DAP connecting via aptX and my iPhone 15 Pro Max through AAC. Multi-point was fine, but the earbuds never dropped a connection when they needed to. I had the earbuds paired to my iPad and iPhone at one point. My iPad was downstairs, and I was upstairs with my iPhone playing music off it. The earbuds kept stuttering in and out as they were trying to connect to my iPad. Compare that to my XM5 earbuds and they either maintained a solid connection to my iPad or they would just drop it and not reconnect until I was right next to my iPad. Overall, these just didn't do it for me, and I returned them only to keep my XM5 earbuds. They're more comfortable, have better ANC and sound quality, longer battery life, and better connectivity. They also have more smart features like shaking your head to reject a phone call and Sony's EQ is much better.

The earbud market is flooded with oodles of models from Apple, Samsung, Bose, etc., so are these any better than the rest? I've used multiple earbuds from all the big players like Apple, Bose, Beats and they all have standout features and/or just sound terrific. There are those in the mid-range that offer decent features for reasonable prices and then there are ones that just kinda defy conventional wisdom....these are those kinds of earbuds. For starters, they sound OK. Not great, but just OK IMO. They don't have any bass boost like Sony earbuds do nor any exceptional ANC like Apple or Bose. These feel more like mid-range earbuds, which is fine, however they carry top tier pricing which is a put off. Sound is good. With the companion app, you have the normal EQ settings as well as profiles you can set for any custom settings you come up with. The big thing here for me was the lackluster noise cancellation. It's bearable at best. ANC from Airpods or Bose are really great and block out pretty much all unwanted noise. These, do a mediocre job at that. Even with the transparency mode off, you're still able to hear a good bit which kinda makes the noise cancelling "feature" pretty useless. It's OK, not great. The fit was a big issue for me as well. I really dislike the shape of these earbuds. For me they were difficult to take out and with the smooth surface of the earbuds, felt like taking these out real quick was a chore. Never had this problem with any other earbuds I've tried so this was a big let down for me. I'd say, again, that these are just mid-range earbuds which would be OK at the sub $100 level or so. But the price these come in at, I'd expect a lot more from these especially coming from a reputable brand like Sennheiser.

The sound quality is excellent, but it's a little bit lacking in the noise-cancelling department, especially when you compare it to offerings from Apple and Samsung. It's definitely worth it on sale, but I don't think I'll pay full price for this.

Sound quality is excellent but the connection drops sometimes. Returned

My AZ80s battery went bad. Got these to try the out. Since the AZ100s weren't avaliable at the time. Sound is good but the interface was terrible for me. Most of the time i wear at work have one bud in. But to have the 2nd bud connect i have to put back in case and take both out. When my AZ80s and now my AZ100s i dont have to that.

Noise cancelling is very good and sound is excellent for earbuds. However, I could never get them to fit snuggly and there was a problem with feedback when pushing the left earbud into my ear. Not sure if this was a one-off defect or what

Great service, but it constantly disconnects on my iPhone. Solid performer when it’s connected though. You don’t need the anc due to how well it seals.

Really hard for me to write this but "i have the Momentum 2 true wirless" The sound is so much better highs are thier nice all around..The 4 sounded boxy and as much i play with EQ...didnt get better..

I've been using the MTW 4 earbuds for about a week now. There is a deal-breaking bud that I can't accept. The buds auto-reconnect to my phone when placed back into the case. Every single time. I realize the buds just got released, but come on. If any product has issues out of the box I return it. I'm not keeping the product hoping for a fix. I previously had the MTW 3 and feel these took a step back in sound quality. The MTW 4 don't sound as full to me, with bass really lacking in comparison. I'm sure Sennheiser will release several firmware updates which will improve the sound. But again, for $300 I'm not keeping a product hoping for a fix / update. There are much better options out there if you want to spend a bit more. At $300 at time of purchase, the value isn't quite there. For $50-$100 more you get into a totally different tier of earbuds, such as Denon or Devialet. Both are far superior and blow almost every other brand of earbud out of the water.

You can watch some pretty detailed reviews about these. I already own XM5s and those outshine in my opinion. If you own an Android phone, you will have the ability to fine tune the sound. With iPhone, those adjustmets will be more limited. I think if I could better adjust the sound profile, I would have considered keeping these. Sound is really subjective and if you’re on the fence, try these out. For me, the Sony’s have it all out of the box for the same price.

Very comfortable and sounds great, but loud hissing when in transparency mode.

Over priced. I perfer bose for the price. The sound is great. Battery life is not long enough. And phone calls were hard because the people on the other end had trouble hearing me.

Fit needs improvement, case is too larger. Ok sound quality but you gotta drill it into the ear to get the best sound possible.

Not what I expected. Although the sound quality is unmatched, the product quality was a bit underwhelming. Unfortunately, my buds had a lot of bugs and made the NC glitch a lot.

Sound quality is great battery is okay and average passthrough is lackluster when in phone calls everyone sounds like they are in a bathroom and everyone says you sound far away

[Employee of bestbuy] Sennheiser consistently has good quality, but the difficulty pairing and the uncomfortable earbuds really make it hard to love the product. Also the transparency mode was lacking compared to other flagships earbuds

These are a bit subpar from what I have gotten from Sennheiser. I mean they are okay but the bass is not as heavy as it has been in the past, so this leaves me feeling a bit disappointed. The case is nice because it is fingerprint-free but, still larger than it needs to be, to charge the buds. Bottom line, if you are looking for decent sound, not an overwhelming amount of bass, theeen these are the buds for you. But if you require a fuller/bassier sound, then I suggest you keep looking.