The QuietComfort 25's replace the QuietComfort 15's (released in 2009) as Bose's chief noise-cancelling ... but a single battery will provide 35 hours of noise-cancelling audio, which is enough ...

The original Bose QuietComfort over-ear headphones, aka the QC, were a game changer when released back in 2000, and Bose laid the foundation for a product category that has grown immensely over ...