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2. Soundcore Sleep A10 review: Super-small earbuds to help you ...

   www.aol.com/lifestyle/soundcore-sleep-a10-review...

   If you want to block outside noise, buy some foam earplugs for a few bucks. If you do decide you want to give the Sleep A10 a try, wait for a sale (like the one happening at Amazon right now).

3. Bose QuietComfort Earbuds 2 review: noise-cancelling ... - AOL

   www.aol.com/news/bose-quietcomfort-earbuds-2...

   Bose's QC Earbuds II bring next-level activate noise-cancelling (ANC) technology to your ears Bose QuietComfort Earbuds 2 review: noise-cancelling that's out of this world Skip to main content

4. 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 ...

5. The best wireless headphones for seniors - AOL

   www.aol.com/lifestyle/best-wireless-headphones...

   Sony WH-CH720N Noise-Cancelling Wireless Headphones. Best Sony XM5 headphones alternative. $98 at Adorama. Earbuds are easily lost, too, but just try misplacing a full-size headphone. Below I've ...

6. 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 ...

7. Catathrenia - Wikipedia

   en.wikipedia.org/wiki/Catathrenia

   Catathrenia or nocturnal groaning is a sleep-related breathing disorder, consisting of end-inspiratory apnea (breath holding) and expiratory groaning during sleep. It describes a rare condition characterized by monotonous, irregular groans while sleeping. [1] Catathrenia begins with a deep inspiration. The person with catathrenia holds his or ...