Nghe Mp3 nhiều gây hại thính lực
Cập nhật: 08:09 18/03/2008 GMT+7
Các chuyên gia khuyên rằng chúng ta có thể nghe nhạc trung bình 4-6 tiếng/ngày, ở mức độ âm lượng 70% so với mức lớn nhất. Nếu nghe ở mức 80% trong 1-2 giờ đồng hồ/ngày sẽ không tốt cho tai.
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