Mini USB Rechargeable Digital Hearing Aid Ear Invisible Sound Amplifier Enhancer
Specification: -Max sound out put:118+/- 4dB -Sound gain:> = 32dB+/- 5dB -Total harmonic wave distortion:
Compare prices (2 shops)
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16,50 GBP | Go to shop |
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16,50 GBP | Go to shop |
