China Retone Invisible Rechargeable Bluetooth Comfotable Hearing Aid with Popular Design Hearing Aids, Find details about China Headphone, Medical Equipment from Retone Invisible Rechargeable Bluetooth Comfotable Hearing Aid with Popular Design Hearing Aids
Invented by Professional R & D team, these hearing aids are precisely tuned
to the range of sounds associated with the human voice and can assist 94% of
hearing loss with mild to moderately-severe hearing loss.
| Single mic Battery: | Rechargeable | Harmonic distortion : | |
| color: | skin Color | 500Hz: | 2% |
| Maximum output : | 115 | 800Hz: | 2% |
| Average output (dB SPL): | 105 | 1600Hz: | 2% |
| range gain (dB): | 40 | model: | Analog model |
| Average gain (dB): | 32 | Button: | Joker button |
| Frequency range (Hz): | 250-5500 | Bettery Current(mA): | 1 |
| Internal noise (dB): | 20 | Memory Switch: | With LED indicator |
| Volume Control: | Rocker-Control | Bluetooth: | √ |