C-109 Behind-The-Ear Super Power BTE Hearing Aids
A-301 Voraiya OTC Invisible With in Ear Magnetic Contact Charging Case CIC Mini Noise Cancellation Digital Hearing Aids Rechargeable
| Product model | A-301 |
| Working voltage | 3.7V |
| Battery capacity | 30mAh |
| Endurance | About 20 hours |
| Maximum OSPL90 | ≤128dB + 3dB |
| High frequency average OSPL90 | 108dB±4dB |
| high-frequency average | 32dB±5dB |
| Total harmonic distortion | ≤7% + 3% |
| Frequency Response Range | 450Hz - 3000Hz |
| Equivalent input noise level | ≤29dB + 3dB |
| Product size | 22.×14.9×12.8 |
| Weight | 3.0 |
