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F-138 DC 1.5V Earhook Hearing Aid Sound Amplifier
F-138 DC 1.5V Earhook Hearing Aid Sound Amplifier
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Handling time 1 - 3 working days. (Buy2fix has to process your order and put all your items through its strict quality-control tests.)
Transit time 5 - 10 working days.
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For whatever reason if you are unsatisfied with your order within 7 days you can return it to us in new condition for a refund minus the shipping charges.
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DOA Guarantee
If your item arrives damaged, please contact us within 7 days and provide clear and valid proof. Buy2fix will make compensation based on the damage situation.
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Missing/Wrong Items Guarantee
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1. This hearing aid earphone is almost invisible when worn, easy to hide and comfortable to wear.
2. Layered noise reduction, providing you with high-quality voice, allowing you to enjoy clearer conversations immediately.
3. Adjust the volume with the touch of a button to help you listen to the sounds of nature.
4. With advanced magnification technology, it can help you anytime and anywhere, suitable for the elderly.
5. Small in size and light in weight, it helps you get rid of the shackles of earphone wires, and is convenient for watching movies and enjoying dramas, etc.
Parameter:
1. Maximum sound output: 129dB+/-4dB
2. Maximum sound gain: 50dB+/-5dB
3. Harmonic distortion: less than or equal to 5%
4. Frequency range: 450~3500 Hz
5. Input noise: less than or equal to 30dB
6. Battery: AG13
7. Working voltage: dc1.5V
8. Working current: less than or equal to 4mA
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