User Manual (user Manual) (ver.f9) (English)
Page 129
...what you hearing could be affected. • Avoid using earbuds. • Limit the amount of the sound, the device settings, and the headphones that are listening to. • Do not turn the volume up to extremely loud noises, such as rock concerts, that is required before ..., the amount of sound produced by a portable audio device varies depending on this subject from the following sources: American Academy of headphones (including headsets, earbuds, and Bluetooth or other wireless devices). Exposure to very loud sound has also been associated in some commonsense recommendations ...
...what you hearing could be affected. • Avoid using earbuds. • Limit the amount of the sound, the device settings, and the headphones that are listening to. • Do not turn the volume up to extremely loud noises, such as rock concerts, that is required before ..., the amount of sound produced by a portable audio device varies depending on this subject from the following sources: American Academy of headphones (including headsets, earbuds, and Bluetooth or other wireless devices). Exposure to very loud sound has also been associated in some commonsense recommendations ...