It really depends on the type of hearing aid that the child needs. They can range from about $80 to $500 based on the type that works for the child. I would talk with your doctor.
they have different hearing range
Infrasound ( below the range of human hearing ) Sonic Range ( within the range ofhuman hearing ) Ultrasound ( above range of human hearing )
the hearing range of human being is from 20hz to 20000hz
they have different hearing range
they have different hearing range
they have hearing
snakes dont have ears so they can't hear
a hearing of hippo is walang alam
Hearing Range of frequencies for humar ears if from 20 Hz to 20,000 Hz.
The opposite of ultrasound (above the human hearing range) is infrasound (below the human hearing range).
30KHz to 50KHz is the frequency range of hearing for a tiger.