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2. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

   www.aol.com/entertainment/20-off-raycon-earbuds...

   These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

3. Head-mounted display - Wikipedia

   en.wikipedia.org/wiki/Head-mounted_display

   Head-mounted display. A head-mounted display ( HMD) is a display device, worn on the head or as part of a helmet (see helmet-mounted display for aviation applications), that has a small display optic in front of one ( monocular HMD) or each eye ( binocular HMD). HMDs have many uses including gaming, aviation, engineering, and medicine.

4. Acoustic camera - Wikipedia

   en.wikipedia.org/wiki/Acoustic_camera

   Acoustic camera. An acoustic camera (or noise camera) is an imaging device used to locate sound sources and to characterize them. It consists of a group of microphones, also called a microphone array, from which signals are simultaneously collected and processed to form a representation of the location of the sound sources.

5. Stenomask - Wikipedia

   en.wikipedia.org/wiki/Stenomask

   A stenomask is a hand-held microphone built into a padded, soundproof enclosure that fits over the speaker's mouth or nose and mouth. Some lightweight versions may be fitted with an elastic neck strap to hold them in place while freeing the user's hands for other tasks. The purpose of a stenomask is to allow a person to speak without being ...

6. The best wireless headphones for seniors - AOL

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

   More options. 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 ...

7. Sound reinforcement system - Wikipedia

   en.wikipedia.org/wiki/Sound_reinforcement_system

   A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. [1] [2] In many situations, a sound reinforcement system is also ...