C-109 Behind-The-Ear Super Power BTE Hearing Aids
D-303 Behind the Ear Air Hearing Aids Rechargeable Hearing Aid for Mild to Moderate Hearing Loss Pocket
| Product model | D-303 |
| Working voltage | 1.3V |
| Battery capacity | |
| Endurance | |
| Maximum OSPL90 | ≤132dB+3dB |
| High frequency average OSPL90 | 127dB±4dB |
| high-frequency average | |
| Total harmonic distortion | |
| Frequency Response Range | |
| Equivalent input noise level | |
| Product size | 42×17.2×9 |
| Weight | 4.2g |
