Bests & Worsts Reviews from Amazon

I will get straight to the point. What hifi rated the Sennheiser Momentum M2 in-ear headphones as the product of the year 2016. I own those and these sound marginally better than those with a very similar sound signature. The main characteristics of this headphone is lush detailed sound, great dynamics and tight, full bodied bass. These are not bass heavy, but these are not bass shy either. Its a bit hard to explain but I will try. My stereo setup consists of a pair of KEF LS50 speakers. I was extremely happy with it, till one day I added a HSU Subwoofer from the home theater system to the mix. The KEF's sounded the same but suddenly I was aware of what I was missing. Think of these headphones as a similar set up where a superb stereo speaker has an amazing subwoofer added to it. The bass never over powers the mids and highs like other bass heavy headphones do. It just adds the extension that you wont notice until you hear it. There is no noise cancelling feature here, I am fine with that. The passive noise cancelling did not bother me at all during a 4 hour flight. What this headphone does is deliver musicality and details in spades. Compared to my Shure SE846 (4X the price) these lack maybe a very thin veil of transparency and detail. But you will be hard pressed to find the differences in an A/B test. All that over bluetooth !!! Not sure why a previous customer complained about bluetooth range, these have a better range than Urbanite XL's that I also own. I was able to keep a steady connection to my Laptop inside the house while planting perennials outside today. That's at least a 50 feet range. When the connection does go out of range, the sq doesn't deteriorate, it simply drops out. I like it, this means I am not constantly trying to be as close to the source as possible to eke out the best possible sound from these. Charging is via a micro usb cable. I would have preferred USB-C but that's just me. One nice touch, if you are listening to music via PC and run out of juice, you can plug these in to the PC and it becomes a USB powered headphone while it charges. Sure the USB cable is inconvenient, but it keeps you listening to the music without interruption. There is no difference sonically between a wireless or a wired connection. This isnt a new feature, other bluetooth headphones by sennheiser have this feature as well, but I find it a nice feature to have. There are a couple of things I do not like about these headphones: 1) The cables come out from the bottom of the neck piece. This adds a bit of length to the headphone cables and it simply makes no sense ergonomically 2) The headphone cables are flat, but I would have much preferred them to be braided as well. Nylon braiding will add some tensile strength to the cables and will give them a longer life, also I find the rubber very slightly sticky on my neck. Nylon or hybrid braiding usually feels a little better. Then again, if you keep a beard, nylon braiding will be scratchy. 3) Out of the box, you get 4 sizes of silicone tips (Xsmall, small, medium, large). My $ 9 Apie earbuds came with 6 sizes. I needed something between small and medium for the right fit. The comply foam tips for momentum fit on these just fine, so thats what I am using. Come on sennheiser, at this price, I expect a few more tips and a few foam ones as well. 4) These headphones are bright out of the box and need at least 20 hours of break in to approach their actual sound quality. I wont ding these for that. But seemed like a longer than usual time to break them in. 5) No aptX™ HD. There are a few things I do like about these headphones 1) Incredible sound quality. I have quite a few bluetooth headphones including Sennheiser made ones as well as the Sony MDR-1000X and the B&W P7 Wireless. These headphones sound better to me than any of those. 2) Improved bluetooth range. If you arent getting a good range or poor sound, check your bluetooth set up, these headphones have a better range than the ones mentioned above. 3) Classy, understated design with a premium finish that oozes luxury. 4) The switch to lower the volume is towards the outside. Easy to reach if you need to reduce the volume in a hurry. 5) 15+ hours battery life. 6) Unobtrusive neckband that easily hides inside the shirt collar. 7) Built in USB DAC. 8) Qualcomm® apt-X™ bluetooth setup. No discernible lag while watching a movie. 9) Sensitive microphone. Everyone hears me clearly and I dont have to shout during my conversation. These will also catch a lot of the external noises, but not any more than your phones built in mic. 10)Included case is quite nice and can hold an extra pair of IEM's. All in all, until Sennheiser releases a truly over ear headphone that can cover my entire ear and supports aptX™ HD, these will remain my go to headphones for listening on the go and at work. (My serious listening headphone is lately a Sennheiser HD 700), sure this headphone isnt for everyone. It doesnt have noise cancelling, isnt flashy and doesnt have a rapper or a dj attached to its development, (though I hear Sennheiser is trying that as well). If music is what you seek and are willing to take on the relative comprise of going bluetooth over wired, these headphones are heartily recommended for you.