AXON Sound Enhancement Amplifier Behind The Ear Hearing Machine B-18 Behind The Ear Hearing Aid(Beige)
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AXON B18 BTE HEARING AID Analogue BTE, compact size Volume control On/off switch TECHNICAL SPECIFICATIONS: Max Sound Output: 129dB ± 4dB Max Sound Gain: 50dB ± 5dB Harmonic Wave Distortion: 5% Frequency Range: 450~3500 hz Input Noise: 30 dB Battery: AG13 Working Voltage dc1.5V Working Current: 4mA
