L Rechargeable Hearing Aid Sound Amplifier – Ear Hearing Aids The Volume Amplifier Adjusts The Volume

Rechargeable Hearing aid
Max Sound Output:129±4 dB
Max Sound Gain: 50dB ± 5dB
Harmonic Wave Distortion: ?5%
Frequency Range: 450~3500hz
Input Noise:?30 dB
Battery: Lithium Battery
Working Voltage: dc 3.7V
Working Current:?3mA
Item Size: 6.6 x 1.3 x 1.3cm
Package Size: 15.3 x 9.6 x 3.8cm
Net Weight: 26g

Product Features

  • ? before wearing the volume to a minimum
  • ? choose slightly larger earbuds to avoid howling, gradually increase the volume, in order to avoid sudden increase in sound.
  • ? If you hear howling, check earplugs (silicone) is appropriate, the size of the plug is tight, select the appropriate earplugs and blocked, to ensure that no leakage
  • ? keep earplugs clean
  • ? If it is not used for a long time, remove the battery

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