1. Comfort adjustment
2. Digital processing chip, ultra-low energy consumption design, one A675 battery can last up to 600 hours

Product Specification

Max Sound Output:                129±3 dB
Max Sound Gain:                    38dB ± 5dB
Harmonic Wave Distortion:      ≤10%
Frequency Range:                  450~3500hz
Input Noise:                              ≤30 dB
Working Current:                      ≤10mA      

Product Features