Features:
1. Easy to operate, suitable for the elderly;
2. One-key switch between general and silent mode;
3. High power, maximum gain 139dB;
4.80 hours long battery life, fast charging speed, safe and stable battery;
5. Free skin-friendly earplugs, comfortable to wear for a long time;
6. Support fine-tuning, you can customize the sound quality;
7. The body is small and easy to carry;
Product parameter
Brand | Shenglan |
Model | blue hearing |
Registration Certificate Number | Guangdong Machinery Note Standard 20192190923 |
Maximum sound output | ≤139±3dB |
Average sound output | 120dB |
Maximum sound gain | 66±5dB |
Equivalent input noise level | ≤25±3 |
Total harmonic distortion | ≤3% |
Response frequency | 300~4200KHz |
Battery capacity | ≤200mAH |
Rated voltage | 3.7v |
Rated current | 1.2mA |
Charging time | 2-3 hours |
Use time | 80S hours (*This item only represents test data) |
Note: This product also provides AAA battery version, if you need it, please contact the account manager.