Question 1

Are these loud enough for mowing?

Accepted Answer

The blue tooth simply is not loud houseboy if I am in place where I am using a saw etc forget it I cont even hear it. It doesn't matter if I am hooked with my ophone, the TV, fire stick whatever, it is these headphone that artificially lower the Bluetooth volume. Anything connected to can be put on 100% it doesn't matter. 100% volume using the headphones and 100% volume on anything hooked to it through Bluetooth and it just is not loud enough unless I am doing nothing at all, meaning why have the headphone on in the first  place. No way they are loud enough using a mower without straining to even hear what is being played. It really stinks  that 50% of what is playing I cant hear over Bluetooth while using these. I have 4 pair over the years and they are all the same. It stupid I think they are trying to pretext our hearing. BUT the FM is ten time louder!

Question 2

Are these phones digital? Meaning theres no station fading?

Accepted Answer

There are 2 concepts here:
  1) the type of signal transmitted (sent in digital format or analog format) and 
  2) the method of reception (analog tuner or digital tuner), 
This subject is confusing because both of these concepts use the terms digital and analog and people cross mix what they are referring to.

This 3m WorkTunes does not receive digital format signals.  This receives analog format signals (just like most of our car radios for local radio stations (note, Sirius XM is digital format) (old cars had analog tuners receiving analog format signals).  
Another way to say it: This headphone's method of reception uses a "digital tuner" to select the exact frequency of analog format transmissions from FM/AM stations.  (It does not receive digital format transmissions from FM/AM stations)   
What it does digitally is set the frequency to the exact frequency and it stays there.  With an analog tuner, it is hard to get to the exact frequency and it can drift up and down from the frequency you stopped at.  There is no drift in a digital tuner.   Digital tuning is the best for this application as it stays on the frequency you want no matter what.

Now to answer your question "Is there no station fading".  This refers to "digital transmission type" (which you always hear the station 100% or you hear nothing).  Since, these headphones only receive "analog transmission types", then YES, you will have fading (because you will hear everything from 100% to 1%).

Question 3

what does it mean these are wired?

Accepted Answer

In order to use your MP3 player you must use a headphone jack.  Wireless means they are Bluetooth compatible.

Question 4

does it fit on large head

Accepted Answer

Yes. They fit my big head at around size 7 1/2. They adjust. The metal rods pull out of the plastic that attaches to the ears. The rods don't pull out of the headband at the top. I was lucky I did not break anything trying to pull the rods out of the top.

Manufacturer	3M
Part Number	90541-80025T
Item Weight	1.06 pounds
Product Dimensions	4 x 6.75 x 10 inches
Country of Origin	China
Item model number	90541H1-DC-PS
Batteries	2 AA batteries required.
Is Discontinued By Manufacturer	No
Size	1 size
Color	Black/Yellow
Style	3m Worktunes
Material	Wood
Pattern	Solid
Thickness	4 Inches
Power Source	AC/DC
Voltage	3 Volts
Item Package Quantity	1
Number Of Pieces	5
Certification	ANSI S3.19-1974
Special Features	Wireless, lightweight
Usage	Radio
Included Components	Auxiliary Cord, Hearing Protector
Batteries Included?	No
Batteries Required?	No
Warranty Description	One year limited warranty.

3M WorkTunes AM/FM Hearing Protector, Noise Reduction Rating (NRR) 24 dB, Radio Ear Muffs With Integrated Microphone & High Fidelity Speakers (90541H1-DC-PS)

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