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| european standard | CN¥ 0.0 |
| american standard | CN¥ 0.0 |
| european standard | CN¥ 0.0 |
| american standard | CN¥ 0.0 |
yiwu ange medical instrument co.,ltd 12yr.
Contacts Anna Chat
Mobile 86-18205891975
E-mail 2427910563@qq.com
Medical18205891957
WhatsApp 18205891957
Max sound output: 129+/- 3dB
2. Sound gain: >= 40dB ± 5dB
3. Total harmonic wave distortion:
4. Input Noise:


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