Hearing Aids In The Ear Invisible Hearing Amplifier The Elderly Headset Wireless Rechargeable Intelligent Noise Reduction Bluetooth Appearance Hearing Aid

الوصف

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