BTE Hearing Aid Cheap Personal Sound Amplifier (HAP-20F)
| 1,Product size | 45x15x10 mm |
| 2,Weight | 4g |
| 3,Max. saturation sound pressure level(OSPL90) | 130dB±4dB |
| 4,Full on Acoustic Gain | ≥ 40dB |
| 5,Total Harmonic Distortion(THD) | ≤10% |
| 6,Frequency Response | 450Hz~3800Hz |
| 7,Battery | AG13/LR44/L1154 |
| 8,Battery Current Drain | 4 mA |
| 9,Rated Voltage | 1.5 V |
| 10,Special Function Key | H-L |

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