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2. Soundproofing - Wikipedia

   en.wikipedia.org/wiki/Soundproofing

   Double-pane windows achieve somewhat greater sound damping than single-pane windows when well-sealed into the opening of the window frame and wall. [10] Significant noise reduction can also be achieved by installing a second interior window. In this case, the exterior window remains in place while a slider or hung window is installed within the ...

3. The Best Motorcycle Jackets You Can Buy, According to ... - AOL

   www.aol.com/best-motorcycle-jackets-buy...

   A motorcycle jacket with shoulder and elbow armor can run anywhere from $75 to $1000 or more. It's important to remember that, as with most motorcycle safety gear, the more you spend, the more you ...

4. Motorcycle helmet - Wikipedia

   en.wikipedia.org/wiki/Motorcycle_helmet

   A collection of full-face motorcycle helmets worn by Moto GP racer Valentino Rossi. A motorcycle helmet is a type of helmet used by motorcycle riders. Motorcycle helmets contribute to motorcycle safety by protecting the rider's head in the event of an impact. They reduce the risk of head injury by 69% and the risk of death by 42%.

5. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first.

6. 3 Best Ways to Block Out Distractions — and Be More ... - AOL

   www.aol.com/lifestyle/3-best-ways-block...

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7. SHARP (helmet ratings) - Wikipedia

   en.wikipedia.org/wiki/SHARP_(helmet_ratings)

   The helmets are tested, seven for each model, using 32 tests, which aim to measure the protection they offer the brain in impacts at a variety of speeds, and against both flat surfaces and kerbs. [2] It rates the helmet models from one to five stars - with five being the highest, [ 1 ] and states that a five star rated helmet "offers good ...

8. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Highway noise is today less affected by motor type, since the effects in higher speed are aerodynamic and tire noise related. Other contributions to the reduction of noise at the source are: improved tire tread designs for trucks in the 1970s, better shielding of diesel stacks in the 1980s, and local vehicle regulation of unmuffled vehicles. [13]

9. Best noise-canceling headphones, according to Consumer Reports

   www.aol.com/news/best-noise-canceling-headphones...

   Sony WF-1000XM4 $278.00 at Walmart. Sony WF-1000XM4 $279.99 at Best Buy. Sony WF-1000XM4 $278.00 at Abt. Over-Ear, Bluetooth, and Budget-Friendly Anker SoundCore Life Q20