New popular Blue-tooth hearing aid, Blue-tooth hearing amplifier with high quality and competitive price
Product Application about sound amplifier hearing aid
The latest developed Lithium battery technology is now available in an excellent inexpensive Blue-tooth hearing aid (Blue-tooth hearing amplifier) that is both affordable and superior to hearing aids commonly available.
This is a brand new revolutionary rechargeable in the ear hearing aid system with Blue-tooth .
You no longer have to pay the price to replace expensive hearing aid batteries again & again....your hearing aid can be recharged over and over again at virtually no cost.
This is a truly green hearing aid..... which means no batteries end up in the trash... no more trips to the store to buy more..... no more running out of batteries for your hearing aid.
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SPECIFICATIONS FOR BLUE-TOOTH HEARING AID MSLA-155
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Max Sound Output
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127±4 dB
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Max Sound Gain
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48dB±5 dB
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Harmonic Wave Distortion
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≤5%
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Frequency Range
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250~3800 hz
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Input Noise
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≤ 30 dB
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Battery
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Lithium Battery
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Working voltage
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dc 3.7V
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Working current
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≤4mA
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Item size
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4.35 x 2 x 1.3 cm
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Packing size
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15.3 x 9.6 x 3.8 cm
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Standard configurations of Blue-tooth hearing aid
1 x Hearing aids
3 x Earplug (different sizes)
1 x Plug Charger (110-240v.)
1 x User manual
Notices when using the Blue-tooth hearing aid
1) Adjust volume to the minimum before wearing.
2) Choose an earplug of slightly bigger size to avoid whistler.
3) Increase volume gradually to avoid sudden increase in sound.
4) If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
5) Keep the ear plug clean
6) Remove the battery if you don't use it for long time
7) Please don't use the computer charge
8) Please don't charge more than 6 hours
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