Axon F-28 Hearing Hearing Aids Sound Amplifier Pocket Worn Hearing Aid Ear Care Tool Specifications: Pocket Hearing aid Max Sound Output: 129±4 dB Max Sound Gain: 60dB ± 5dB Harmonic Wave Distortion: ≤5% Frequency Range: 250~3800 hz Input Noise: ≤30...
AXON X-136 Pocket Wired Box Mini Hearing Aid Best Sound Amplifier Receiver Ear Care Tool Specifications: Pocket Hearing aid Max Sound Output: 129±4 dB Max Sound Gain: 55dB ± 5dB Harmonic Wave Distortion: ≤5% Frequency Range: 450~3500 hz Input Noise:...