In-Ear Canal Sound Amplifier Deaf Hearing Aide
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- Max sound output:110±5Db
- Sound gain:≥30dB
- Total harmonic wave distorting:≤10 ?
- Frequency range:300-400Hz
- Input noise: ≤40dB
- Voltage:d.c.1.5V
- Current: ≤4mA
- Hearing aid, When you watch movie, enjoy the drama, attend meeting, or have classes, the product can help you to hear the sound clearly and loudly.
- While in forest, if you want to hear very slight sound, it will be a good choice.
USER INFO: / (02) 945-2568,(02) 414-3972
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