What are the reasons for the hearing aid silent?
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If the hearing aid battery is dead, try replacing it with a new one. 2.Check if the volume switch program button is turned on and reopen the battery compartment. 3.Whether the sound hole of the hearing aid is blocked, and the sound hole is cleared. 4.If it is a back-and-back machine, check the sound tube for moisture, and remove the sound tube to dry the water vapor. If you eliminate the above reasons, you can’t solve it..
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