Personally not a fan of the Bose headphones, I returned mine. Good at reducing droning sound but not higher frequencies and the quality of sound left a lot to wish for. I would not consider using them in my shop.
I did a little hack to enable listening to music in the shop while doing menial tasks such as sanding down 100+ interior doors for a new coat of paint...
I picked up a pair of old style Koss headphones, a decent pair for chump change. I then encased them in a Pair of 3M/Peltor X4A which is a pretty high dB rated "slim style" pair with a more dense foam inside than the regular pairs.
I can run an FM radio/MP3, my iPhone or for the most part my tiny iPod Shuffle tethered to the ear protectors.
The sound is actually unexpectedly good from the Koss earphones when encased in the Peltor ear protectors. I use them when sanding drywall, general sanding or other menial tasks at the workshop. I would not play music while working with routers or table saws and I don't talk on the phone while I am working so I am fine with this set up.
The quality of sound actually surpasses the Bose QC 25 unit I had. I have done the same with another pair of Peltors (with Sennheiser phones in them) and I have an older pair of Peltor with FM radio which is ok too but we have poor reception in the work shop so I prefer MP3-players.
I have tried Howard Leigh (passive with phone jack) and newer Zekler with AUX input but the EC standard 85dB cutoff level is a joke - it takes no consideration to source level rendering it unusable as a weak recording/source material or FM source becomes inaudible even at the highest available level on the headphones. I prefer my own cut off point thank you very much and the inserted KOSS and Senn's allow me to adjust accordingly.