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Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...
Brookstone is a chain of retail stores in the United States and China. It was founded as a mail-order business in 1965, when it started selling items, such as dental clamps and other specialty tools. [ 3 ]
The Headset Profile (HSP) connects headphones and earbuds to a cell phone or laptop. The Health Device Profile (HDP) can connect a cell phone to a digital thermometer or heart rate detector. The Video Distribution Profile (VDP) sends a video stream from a video camera to a TV screen or a recording device.
Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.
RadioShack (formerly written as Radio Shack) is an American electronics retailer that was established in 1921 as an amateur radio mail-order business. Its original parent company, Radio Shack Corporation, was purchased by Tandy Corporation in 1962, shifting its focus from radio equipment to hobbyist electronic components sold in retail stores.
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On December 21, 2010, Gibson was granted a request for an injunction against WowWee and retailers in the United States which were selling Paper Jamz guitars: Walmart, Amazon, Big Lots stores, Kmart Corporation, Target Corporation, Toys "R" Us, Walgreens, Brookstone, Best Buy, eBay, Toywiz.com, and Home Shopping Network (HSN) [70] [71] [72] The ...