According to a report released last year by the World Health Organization, 1.1 billion young people worldwide are at risk of hearing loss due to the long-term use of personal audio devices such as headphones or frequent bar nightclubs.
Bar nightclubs can not go, but can not wear headphones to listen to music, for many people is really uncomfortable.
Is there really no way to listen to a song on the way to and from work, except to put a high decibel sound on the battery car and fly through the crowd?
Normal speakers, unless you tune the sound to a very small, otherwise the people on the side can hear.
But basically you can't hear it yourself. Bluetooth amplifier class d
have the effect of "directional audio". In a certain range, you can hear the voice of bluetooth amplifier class d clearly, but the people on the side can hardly hear the voice.
So compared with traditional headphones, the most important thing about bluetooth amplifier class d
is that they can provide users with a full range of auditory feasts at a safe distance without damaging the eardrum.