Noise Control Speakers
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GSI Super Quality Two-Way Radio Headset Kit for Full-Face Motorcycle Helmets – Noise Cancellation In-Helmet Earphones with Boom Microphone and Dual Speakers – Handlebar PTT (Push-To-Talk) Control Button – Compatible with Motorola, Icom, Uniden, Kenwood and All Standard 2-Way Radios $29.99 This Newest Model from the world-class designers at GSI features an Important Communications Tool for the Outdoor Biker and Cyclist. The Headset kit allows Hands-free use of Any Brand Name 2-Way Radio, and Provides Amazing Sound Clarity under Extreme Road Conditions. It also includes a PTT button which secures to the Bike Handlebar, and controls the Radio Functions. Sound, Safety and Style all Pac… |
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GSI Super Quality Two-Way Radio Headset Kit for Full-Face Motorcycle Helmets – Noise Cancellation Plug-In-Helmet Dual-Sided Earphones with Boom Microphone – Handlebar PTT (Push-To-Talk) Control Button – Compatible with Motorola, Icom, Uniden, Kenwood and All Standard 2-Way Radios $29.99 This Newest Model from the world-class designers at GSI features an Important Communications Tool for the Outdoor Biker and Cyclist. The Headset kit allows Hands-free use of Any Brand Name 2-Way Radio, and Provides Amazing Sound Clarity under Extreme Road Conditions. It also includes a PTT button which secures to the Bike Handlebar, and controls the Radio Functions. Sound, Safety and Style all Pac… |
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Coby Noise Cancellation Digital Stereo Earphonewith In-Line Volume Control CVE195 (Black) $12.99 Features:Professional Digital Quality SoundPowerful Samarium Cobalt Drivers for Super Bass SoundNoise Reduction Level: 12 dB at 300HzSingle-Sided Cord with Gold-Plated 3.5mm Stereo PlugDual-Plug Adapter for AirplaneRequires one “AAA” Battery (Included)Accessories Included:Carrying PouchAirplane Adapter Plug… |
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Noise-cancelling Headphones: Active Noise Control, Circuitry, Speaker Driver, Destructive Interference, Soundproofing, Lawrence J. Fogel $46.00 High Quality Content by WIKIPEDIA articles! Noise-cancelling headphones reduce unwanted ambient sounds (i.e., acoustic noise) by means of active noise control (ANC). This involves using one or more microphones placed near the ear, and electronic circuitry which uses the microphone signal to generate an “antinoise” signal. When the antinoise signal is produced by the speaker driver in the headphone… |