Rechargeable Ear Hearing Aid Mini Device Sordos Ear Amplifier Digital Ear Zoom In The Ear For Elderly Gift Apparecchio Acustico
Technical Details
| Frequency range Hz: | 100-4000hz |
| Harmonic distortion rate: | ≤ 6 |
| Maximum saturation pressure ± 4dB: | 130 |
| Operating Current: | < = 3mA |
| Output Power: | 3.6mW |
| Speaker impedance: | 110 Ohm |
| The equivalent input noise: | (± dB) ≤ 28 |
| The gain/Continuous working time: | 30db/(H) ≥ 15 |
| Unit Weight/Battery capacity: | 6.2g/40MA battery is a rechargeable battery |
| Voltage: | 1.2VDC |
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