Bose QuietComfort 45 Bluetooth Wireless Noise Cancelling Headphones, Midnight Blue – Limited Edition (Renewed)

Acoustic Noise Cancelling: The Acoustic Noise Cancelling technology is a product of more than 50 years of research. It cancels outside noise using an opposite signal, resulting in quieter and more of your music. You can choose from Quiet Mode for full noise canceling or Aware Mode to let in some of your surroundings when needed
High-Fidelity Audio and Adjustable EQ: The QuietComfort 45 headphones feature exclusive Bose technologies like TriPort acoustic architecture to produce everything in high fidelity. Meanwhile, Adjustable EQ allows you to tune your music to exactly how you like it by adjusting the bass, mid-range, and treble
Noise Rejecting Mic System: With four external microphones, the headphones isolate and focus on your voice, while a noise-rejecting algorithm filters out environmental sounds for clear conversations, even in windy, noisy conditions