10 bells actually.
This is a matter of opinion, but many popular brands of earphones would be Bose, Beats by Dre, SkullCandy, Shure, and Logitech. These are just the most popular, not taking into considerations any actual statistics.
20 decibels
There are two syllables in the word 'earphones'.
207 decibels.
70-100 decibels
20 to 50 decibels (dB).
85 decibels maximum.
in what
130 decibels -140 decibels close up maybe louder though
Roughly 150-160 decibels.
•Sound can be measured in many ways such as decibels. There is a special machine which you can by that measures how many decibels something makes. A pin makes 10 decibels where as a loud persons or a stereo can make up to 80 decibels. Volume is measured in decibels. So Frequency is measured in hertz
a plane has 15000 decibels, there are lots maybe upto 2000000