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2. Mind-blowing Sony WF-1000XM4 earbuds are discounted at Amazon

   www.aol.com/news/mind-blowing-sony-wf-1000xm4...

   Everyone and their grandmothers knew that the Sony WF-1000XM4 Truly Wireless Noise Cancelling Earbuds announcement was coming even before they debuted. So many leaks and rumors that trickled out ...

3. Sony WF-1000XM4 earbuds price has a rare discount today - AOL

   www.aol.com/news/sony-wf-1000xm4-earbuds-price...

   Everyone and their grandmothers knew that the Sony WF-1000XM4 Truly Wireless Noise Cancelling Earbuds announcement was coming even before they debuted. So many leaks and rumors trickled out ahead ...

4. Premium Sony wireless noise-canceling headphones for under ...

   www.autoblog.com/article/premium-sony-wireless...

   The Sony WH-1000XM4 wireless noise-canceling headphones are currently $198 for Amazon's Prime Day deal discount of 43% off and have a 4.6 out of 5-star rating from over 56,000 raters. The majority ...

5. Sony's WF-1000XM4 earbuds could feature better battery life ...

   www.aol.com/news/sony-wf-1000xm4-leak-200311915.html

   Sony's upcoming WF-1000XM4 earbuds have leaked again, all but confirming they'll feature the new design we saw at the start of the month. Sony's WF-1000XM4 earbuds could feature better battery ...

6. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise -cancelling headphones alongside a carry case. Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing . Noise cancellation makes it possible to listen to audio ...

7. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...