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Core Viewpoint - The article discusses the potential health issues associated with the use of bone conduction headphones, including symptoms like dizziness, imbalance, and tinnitus reported by users. It highlights the need for caution and proper usage guidelines for these devices. Group 1: User Experiences and Symptoms - Multiple users reported experiencing dizziness, imbalance, and other discomforts after using bone conduction headphones, attributing these symptoms to the headphones only after stopping their use [1] - Users initially blamed their symptoms on personal factors until they noticed improvement after discontinuing the headphones [1] Group 2: Mechanism of Bone Conduction Headphones - Bone conduction headphones transmit sound through vibrations in the skull, bypassing the outer and middle ear to directly stimulate the inner ear [2] - The prolonged exposure to vibrations, especially low-frequency ones, can affect vestibular function, leading to symptoms like dizziness in some individuals [3] Group 3: Hearing Damage and Safety Concerns - The World Health Organization indicates that exposure to sound levels above 80 decibels for extended periods can damage cochlear hair cells, leading to hearing loss [4] - Open-type headphones, including bone conduction models, may require higher volume levels in noisy environments, potentially exceeding safe sound thresholds [4] - Misleading claims about bone conduction headphones protecting hearing are addressed, emphasizing that improper use of any headphones can negatively impact hearing [4] Group 4: Recommendations for Use - Certain groups are advised against using bone conduction headphones, including individuals with skull or temporal bone abnormalities, chronic head pain, or low tolerance to vibrations [6][9] - The article suggests following the "three 60 principles": keep volume below 60% of maximum, limit usage to 60 minutes, and use in environments with background noise below 60 decibels [7][9]