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1. BIOMEDICAL EQUIPMENT TRAINING HEARING AID ATHEENAPANDIAN PRIVATE LIMITED

2. MEAN? Hearing aids can all be described as small, wearable electronic devices which enable a person to hear sounds better and understand speech more clearly, providing an overall improvement in communication ability.

4. Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz. (Human infants can actually hear frequencies slightly higher than 20 kHz,