Customer Ratings & Reviews

Excellent product from Sennheiser, as expected. The only flaw is the midrange and treble are recessed a little. Great bass and sound overall, with detail and high resolution

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.

Top tier earbuds, especially once you fine-tune the sound profile. For audiophiles who prioritize amazing detail, clarity and depth. I've owned other high end buds such as the Sony XM4 and XM5, and the Momentum 4s sound superior, and ANC is on par. Galaxy buds and AirPods aren't worth mentioning since they aren't even in the same league as far as sound quality.

I upgraded from the Sennheiser Momentum True Wireless 2 and it’s worth it! The sound quality is superb and I notice even more sounds than with the MTW 2. The fit feels more secure and comfortable to wear throughout the day as well. If you’re looking for an upgrade? These are one of the best options out there.

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..

Fantastic earbuds! Very good low end bass, Surprised at how dynamic these are. Especially once you mess with the EQ a bit. I don't think these get the credit they deserve! Sennheiser for the win! Side note: if you wear them while working out, try out the bigger fins that they come with (unless you have tiny ears)

Great sounding earbud especially when you add foam tips. Sennheiser's companion app is great for tweaking the sound. If these have downside it's the microphone. People on calls complain of an echo. This is the only thing keeping me from giving them 5 stars.

The overall sound quality is pretty great. The battery life could be a lot better but the fast charge feature helps fix that.

While I normally gravitate towards another higher-end brand, I took the chance with these pairs and do not regret it in the least. For the quality of sound, the price was well worth it.

Headphones have been nothing but stellar. The sound is great, the case has a nice feel and the magnets pull them in smoothly. Full bass sound from such small speakers.

I have a pair of MOMENTUM 23 that I have used heavily, and battery runtime was becoming an issue, so I bought a pair of MOMENTUM 4 to sit on my wireless charger and always be available to use. The 4's background sound is clearer and they fit more snugly. They seem to connect faster.

Im going to keep this review pretty short and simple. These headphones are some of, if not, the best wireless headphones on the market. Anc is clean. The soundstage is perfect. Battery life is excellent. They are my everyday carry for the construction world and they hold up. I highly recommend.

Pretty great the sound is amazing. My only gripe is that the function it uses for Bluetooth pairing is kinda buggy if you pair it to more than one device the earbuds won’t know which to connect too and will keep bouncing back and forth between devices unless you turn one devices Bluetooth off.

A little to much bass out of the box. Phone App work for basic without an account (eq, firmware up dates, notice canceling) . App will not sign to use all the extra stuff.

These earbuds have excellent noise cancellation. The sound quality it top notch. I listen to lots of classical music and these earbuds seem to capture every frequency. The equalizer within the app is a great touch. The price is low compared to all the professional sounding audio you will get from these earbuds.

Awesome. Loud enough. CLEAN separation and 360 audiophile quality. Takes a few tries of various fitting, but once you get it, they go in easy and are comfortable. All music via bluetooth sounds amazingly clear. Bonus, close your eyes and hear sounds in your favorite music, that you didn't know were there!

I mean its Sennheiser sound quality. Never disappointed me in that regard. It has a lot of issues for me. The most important one is noise cancelling. It says its active nc but I highly doubt it. In an office environment, when these are on, even while I am playing some binaural beats, I can hear even the chair squeaks of my colleagues when they just move about. I can hear everything they are saying. When I turn off the noise cancelling, it channels more noise in which is fine but there is no just off button. The reason I even looked for "normal" state is because when you turn on the noise cancelling, you get to hear this faint hissing sound that is base-e. I guess thats all the noise cancelling it does. That base heavy hissing sound cancels out the noise from things like if you have a fan near by or you are in an airplane but you still hear everything else. The second issue is the connection. I never experienced it to just connect and start playing. I always have to give it like 20 seconds for it to settle down after connecting to a device whether a laptop or my cellphone. After connecting, the sound randomly cuts off in one ear, then it comes back and then the other ear is off and so on until it settles. Then it is fine. The comfort is another issue for me. Yes it does give you lots of options to customize it but in some configurations you loose the base when you gain comfort. That's not much of an improvement is it? I have to sacrifice sound quality for comfort? At this price point? As I am typing this review, I hear every key click from my keyboard. How is this a noise cancelling headphone? Wow my friend just walked by my desk and I heard the smacking noise from his flip flops and I am playing binaural beats with heavy base right now.

My go to earbuds for the gym and flying. The active noise cancellation does its job, as well as the transparency mode. The sound on this earbuds is amazing and being able to customize the sound is plus.

Does exactly what they are intended to do. Great sound, more than acceptable ANC, wireless charging case, multi point connection. Slightly uncomfortable, but most in ear buds are to me. Great product.

Sound was great, but it didn't have the bass I was looking for. The sound clarity was wonderful and they were well balanced, but I was looking for more punchy bass. I ended up returning them. For the average listener, you'll like them.