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Hearing Amplifier, High Super Power Digital BTE Hearing Aid Siemens Fun SP Severe Profound Loss Device Sound Amplifiers for The Elderly?
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About Hearing Amplifier, High Super Power Digital BTE
Parameters: Technical Data: 2cc coupler IEC118-7 Peak:132dB Reference Frequesncy(1.6KHZ): 123dB Max Gain: 50dB Total harmonic distortion: 500HZ :4% Equivalent Input Noice: 16dB Uses Size 675 Zinc Air Batteries Package Includes: 1 x Hearing Aid 3 x Earplug(Different Size) 1 x carrying case Note: 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.Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids. 6.Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing aid components.
