Maybe I got a defective unit or something.

Graciously, the company replaced the unit with absolutely no hassle...terrific.

Overall it's not a bad unit for the

Those units, when you turn down the volume, you can actually "feel" the ANC working by blocking out ambient noises, but for this unit, it was not working at all.

Overall it is not a bad unit for the price

Of course, if you need "zero" external sound, then you may consider to buy a much more expensive unit, but, if you just need a pair of in-ear phones with very good noise cancelling characteristic, then go for this one

Those units, when you turn down the volume, you can actually "feel" the ANC working by blocking out ambient noises, but for this unit, it was not working at all.

You might think that I was unlucky to get a defective unit

Later that same day I get an email telling me that it seems that I got a defective unit and a new one could be shipped with no expense to me

n’t work at all because it wouldn’t charge