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
