The legend behind the headphones' creation is that founder Amar Bose was dissatisfied with the airline-issue headphones provided on a flight he took in 1978. However apocryphal, he is said to have written down calculations before landing, and those plans led to the first noise-canceling headphones that came out years later. Search “비아그라 필름 가격 viaamall.com 비아그라효능 비아그라 25mg 효과 비아그라필름 sEi” from Improved Noise-Canceling Headphones by Bose

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The legend behind the headphones' creation is that founder Amar Bose was dissatisfied with the airline-issue headphones provided on a flight he took in 1978. However apocryphal, he is said to have written down calculations before landing, and those plans led to the first noise-canceling headphones that came out years later.