I really wanted to like these. However, when on Bluetooth the playback skips/stutters regularly. The sound is quite good, and the ANC is ok for the price, but the skipping has rendered them unusable wirelessly, which is why I bought them. They work just fine plugged in passively (aside from ANC being unavailable), but I would have bought different headphones if I knew they had to be tethered to my devices to function properly.

I'm really enjoying the Monoprice Monolith M1000ANC Bluetooth Headphones. Very comfortable. Battery lasts forever!! I have yet had the need to recharge them after days of use. I rated it a 4/5 because I would prefer they played a little louder personally, and the head band is more oblong as opposed to round and could be a little tighter on my head. The sound quality is the star of the show. Detail on the top end and mids are clear and articulate. Low end is impressive. Great product!

The headphones are comfortable to wear. Charging is quick. The only problem is getting the volume high enough to hear .

about 2/3s volume I would like available

Pretty good sound, easy setup. Materials feel like the good quality (especially for the price) one expects from Monoprice.

Only issue is that the adjustable head band is oddly shaped -- sort of squat and wide, which looks weird on a normal head. Not too uncomfortable, but nowhere near the fit of a Sony.

These are some of the most comfortable headphones I have had in awhile. The noise cancelling is also some of the best I have experienced. Highly recommended. I got these on sale and am very happy.

Noise suppression is excellent.

Sound is excellent (I note that others commented on the lack of bass -- I entirely disagree with them).

Connection via Bluetooth is fast and stable.

Great for listening to music or voice, and the microphone is very good for phone/Zoom/Teams/etc.

Misc:
The controls work really well.
The carry bag is nice for keeping them clean..
They are comfortable and look good.

And, you can't beat the value!

These headphones simply dont get loud enough. I use them for podcasts, youtube videos, and tv shows because they just arent really fun to listen to music to, as I have other bluetooth headphones that get louder, and support more bluetooth codecs than sbc. Please monoprice dont make any more headphones as quiet as this, even if you have to reduce the battery life, thats a small price to pay for a more enjoyable experience

As a person who wears glasses, these are some of the most comfortable headphones I have owned. The noise cancelling is wonderful and the audio quality is quite nice for the cost. My only complaint, when noise cancelling is active a small crackle/pop noise cancelling be heard intermittently during times of silence. This persists weather the headphones are connected to Bluetooth or not. The pops aren't loud enough to be noticed unless you are listening for them but they exist none the less.
Ultimately I would still recommend these as the performance for value is unmatched.

3 stars considering I nabbed these for like $38.
Build quality is decent although not as good as the original Active Solace cans. Sound quality is pretty good although they don't have a lot of punch. Bass is not bloated or boomy but has little oomph. Clarity reasonable. NC is deceptively effective. A highlight is the sound quality seems unaffected when NC is on regardless of strength and the NC works well. My biggest complaint is the volume: simply not loud enough. For $40 these are fine yet at anywhere near $100 a disappointment. Not lousy cans I just don't feel these earned the Monolith badge. I own the liquid spark DAC & amp, M650 open-back wired cans, the USB stick style DAC/amp, etc. All those punch way above their price, love them. These NC BT cabs should be under the regular Monoprice name, not worthy of the Monolith name in my opinion. I'm a Monolith fanboy, I want to brag on those products. No such luck here.