hearing aid for the elderly xm-909f sound amplifier ear-back hearing amplifier portable mini portable sound collector

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1. maximum output: 128±5 db.

2. maximum speech gain: 40±5 db

3. harmonic distortion: ≤ 10%(1000hz)

4. frequency range: 300-4500hz

5. battery voltage: dc 1.5v

6. direction: all-round

product color: beige

machine weight: 11g

machine and package weight: 80g

features:

• super mini size and light weight, adjust the volume to the minimum before wearing

• gradually increase the volume to avoid a sudden increase in sound

the package includes:

1 hearing aid amplifier

2 x ag13 button battery

3 ear cap

1 x manual

Update time：20250719173136