描述
- Adjust volume to the minimum before wearing.
- Choose an earplug of slightly bigger size to avoid whistler.
- Increase volume gradually to avoid sudden increase in sound.
- 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.
- Package includes: 1 hearing aid, 1 charger, 1 brush, 1 pair of headphones, earplugs for each section.
Technical parameters introducedElectric time: 6-10HPower supply duration: 16-20HPower supply voltage: 1.4VSaturated sound pressure level OSPL (dB): ≤130 +3High frequency average (dB): 108 + 4Sound file full gain (dB): 35 soil 5Equivalent input noise level (dB): ≤32Frequency response range (Hz): 200 ~ 3800Total harmonic distortion (%): ≤8Adapt to the crowd: mild to severe hearing loss patients
