"Very good, only a couple of niggles."4.0 starson by bobwmunich
Pros: - excellent noise reduction
- very comfortable (and in an open car they keep the ears warm)
Cons: - rechargeable batteries not supported (supposedly)
- low battery click very annoying
- no automatic shut off
Summary: Summer is here and I can open the roof on my Spider. The QC 15 does a nice job of reducing the wind and road noise (I can almost imagine myself in an S-Class) and I can hear the music fine. Being 70 I can't really comment on the audiophile qualities of the phones (optimum hearing range is probably about 1000 - 1005 Hz.).
The major annoyances involve the batteries: the phones don't support rechargeable aaa cells (I haven't tried yet, but supposedly their 1.2 V is too low). Also, on my first day I forgot to switch the phones off, so the next morning my battery was dead.
However, as a whole, I am pleasantly surprised with the device (comfort and noise reduction excellent).