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| Place of Origin | China | Brand Name | senlan |
| Model Number | bluehearing | Registration Certificate Number | Guangdong Machinery Note Standard 20192190923 |
| Maximum sound output | u2264139u00b13dB | Average sound output | 120dB |
| Maximum sound gain | 66u00b15dB | Equivalent input noise level | u226425u00b13 |
| THD | u22643% | Response frequency | 300~4200KHz |
| Battery capacity | u2264200mAH | Rated voltage | 3.7v |
| Rated current | 1.2mA |
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