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Use for NDSI console.
Traits:
1.Double stero spearker;sound and alt-bass clesrly.
2.sound function with clearly
Electric property trait:
speaker
1.108 3dB at 1,000Hz/1.28V
2.Resonance frequency Fo 250HZ±20%
3.Frequency response 20-20KHz
4.Degree of distortion:input power rating 1KHz and the most degree of distoration is 5%
Microphone
1.sensibility:58±5dB
2.S/N≤60dB
3.Frequency response 30~16,000Hz