I did some walking around testing and they would start dropping out after very short distances from my phone, and if they were in my pocket I'd get an intermittent signal

Also, when used for telephone calls, the signal degrades over time until I can barely hear the other person because it keeps cutting out

If I walked away to another room away from the laptop, it cuts out thus yielding an intermittent audio signal

As time went on it kept losing signal and the music was choppy

I have begun to get suspicious of whether or not the wind made it harder for a weaker signal to operate.

I assume due to weak signal or some sort of interference.

The most likely cause of consistent Bluetooth drop outs is a corrupted Bluetooth signal so delete the Bluetooth connection between the headphones and audio device, then turn off both the headphones and the audio device completely and then turn on both devices and re-establish the Bluetooth connection

It pairs fast and holds a consistent signal from at least 20 feet

WOWall i can say is well doneSennheiser made a product that is designed superb for the city commuter, a pair of headphones that 1. last over 20 hours and 2. have a descent sound quality for Bluetooth.my only niche is that the signal gets lost many times because millions of people in the city are using the same Bluetooth connectionSennheiser Momentum 2.0 Wireless with Active Noise Cancellation- Black

so if you already have good headphones you may not be as blown away by these as I

The noise cancellation is okay, but nowhere near the levels of the Bose QC35 or Sony WH1000.Overall there's much better options for this price that sound almost as good, or even better.

The mid-bass hump I experienced in passive wired mode was completely gone and smoothed out as soon as you enter active mode

These are every bit as good as I'd hoped they would be

these headphones sound almost as good as my wired B&O H6 2nd Gen headphones

It's not as good on these as on any of their competitors, but it doesn't suck

Comfortable to wear for 8+ hours on flights or when working as long as you adjust the cups properly and don't have them putting pressure on your ear

However, they don't sound nearly as good as the Sennheisers and also will leave your scalp in a world of pain after 30 minutes.

The earcups aren't as soft as on other products though, and for an over-ear the cups are surprisingly small, so if you have huge ears you may want to try these before you buy

So if you're buying them because they sound better than the Bose, don't bother as they are larger and won't play high quality files

I have also noticed that the noise cancelling does not seem to be as effective as with the 550s, but I do not notice as much wind buffeting.

The noise cancellation is not as great as I would have hoped, but much better than my last pair of headphones which were "on ear" and did not really block anything.

Those who prefer a warm, focused, bass-forward sound will prefer the Sonys

Having an amplifier in advance also helps because l did get more out of this headphone(l don't recommand buying a amp just for this headphone because it's not worth it).