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Max Sound Output | 120±3dB |
Sound Gain | 32dB±5dB |
Total Harmonic Wave Distortion | ≤15% |
Frequency Range | 400-3500Hz |
Input Noise | <= 30dB |
Voltage | DC.1.5V |
Current | <=10mA |
Battery size | A10 |
Certificates | FDA, Medical CE, CE, RoHS, ISO9001 |
Warranty | 1 Year |














1.Standard packing, neutral packing, your packing are welcome
2.7-10 days after receiving the 30% deposit
3. DOOR TO DOOR, BY AIR, BY SEA , Alibaba Shipping etc.
4.Credit Card, Paypal, Local Bank, Western Union etc.
5.We can offer product pictures to our customers, welcome to contact us
New products from manufacturers at wholesale prices