What is BTE hearing aid
The Parameter of GM-100A
Maximum sound output: 129 ± 3dB
High-frequency average OSPL90:120±4dbB
Maximum sound gain: 38dB ± 5dB
Total harmonic distortion:≤8%
Frequency range: 500Hz-3500 Hz
Equivalent input noise level:≤32dB
Working current≤2mA
Use tips:
1.Adjust volume to the minimum before wearing.
2.Choose an earplug of slightly bigger size to avoid whistler.
3.Increase volume gradually to avoid sudden increase in sound.
4.If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
5.Clean the hearing aid microphone with a small brush frequently to maintain the quality of the hearing aid.
6.Remove the battery if you don’t use it for long time.
Ways to avoid howling/noise:
1. When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume from low can effectively avoid howling.
2. When the ear canal is completely sealed, there is no howling sound. Therefore, please use hearing aids after cleaning your ear canal, and test the earplugs from large to small to find the most suitable earplugs.
3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, and then release it to fully extend the earplug.
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