Bose QuietComfort 25 Acoustic Noise Cancelling headphones works even without a battery

The old must go, and the new ought to arrive. The time has come for the five year old Bose QuietComfort 15 Acoustic Noise Cancelling headphones to finally call it a day, especially when you take into consideration that its successor, aptly known as the Bose QuietComfort 25 Acoustic Noise Cancelling headphones has just been announced, where it delivers next generation performance that will boast of an entirely new design, ...