The hearing amplifier is a device to help people hear better. It does this by amplifying sounds and then transmitting these to the ear. The hearing amplifier can neither prevent nor alleviate organically caused hearing loss. The hearing amplifier offers you a variety of applications. This medical product has the following specifications: sound amplification - max. 40 dB; maximum audio output - 128 dB; Frequency range - 100 - 6000 Hz.