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KF-909-918 Behind the ear Hearing Aid
 We have 12 years experience in making the Hearing Aid. By now we have developed the Hearing Aid to have the function of answering phone. All the products we are making can match the US ANSI92 and IEC-118-7/94 standard. We also have the advanced international 6500-CX Hearing Aid Auto Analyzer to control the production process.

 There are some important indexes for a Hearing Aid.

1. power increasing range

2. stability of output signal and timbre disposal

3. Max distortion index and disposal function

4. earphone quality

All the above factors effect the Hearing Aid quality

KF-906 Hearing Aid Pocket Model

  Max sound output:129±4dB
  Sound gain:50±5dB
  total harmonec wave
  Distortion:≤3-10%
  Input noise:≤26dB
  Voltage:1.5V(AA)
  Current:≤6mA

KF-908 Hearing Aid for listen phone

  Max sound output:129±4dB
  Sound gain:60±5dB
  total harmonec wave
  Distortion:≤3-10%
  Input noise:≤26dB
  Voltage:1.5V(AA)
  Current:≤8mA

KF-909 Behind the Ear Hearing Aid

  Max sound output:128±4dB Sound gain:52±5dB
  total harmonec wave Distortion:≤3-10%
  Input noise:≤26dB
  Voltage:1.5V(A675)

 Current:≤3mA