C-109 Behind-The-Ear Super Power BTE Hearing Aids
A-27 Noise Cancelling Earbuds Mini In-Ear Wireless Earphones With Type-C Fast Charging Cable and Wireless Charging Case
| Product model | A-27 |
| Working voltage | 3.7V |
| Battery capacity | 35mAh |
| Endurance | About 20 hours |
| Maximum OSPL90 | ≤109dB + 3dB |
| High frequency average OSPL90 | 105dB±4dB |
| high-frequency average | 32dB±5dB |
| Total harmonic distortion | ≤7% + 3% |
| Frequency Response Range | 450Hz - 3000Hz |
| Equivalent input noise level | ≤29dB + 3dB |
| Product size | 21.6×16.5×11.6 |
| Weight | 2.5g |
