(without charge head)USB Rechargeable Hearing Aids Super Ear Hearing Device For Elderly Amplifier Adjustable Tone Hearing Aid Sound Amplifier MAS

Tips for buyers:The cause of howling/noise: The internal amplifier and the microphone are close to each other of the hearing aid, and the sound is continuously received and expanded, so it has a certain possibility of produce howling after power-on. At present, small hearing aids and high-power hearing aids on the market can hardly avoid howling, and only full-digital hearing aids can avoid howling.Ways to avoid howling/noise:1. When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume from low can effectively avoid howling.2. When the ear canal is completely sealed, there is no howling sound. Therefore, please use hearing aids after cleaning your ear canal, and test the earplugs from large to small to find the most suitable earplugs.3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, and then release it to fully extend the earplug.In addition: If you do not know how to use it or there is a problem with your hearing aid, please do not rush to leave a negative review and contact us. Thank you. Features •The hearing aid come with rechargeable function, no need to change battery •The hearing aid combines a cosmetically appealing look with the smooth sound an internal speaker •This hearing aid channel digital sound processing allows the user to control volume Specification Max OSPL: ≤129dB±3dB Max Sound Output: 117dB±4dB Max Sound Gain: 38dB±5dB Frequency range: 450Hz-3000Hz Total Harmonic Wave Distortion: ≤10% Input noise: ≤28dB Charging time: 4-6H(8H for the first charge) Available time: 40H (Depending on amplification power) "OFF"---Power off button "H"-----Low frequency compression mode "N"-----Normal usage mode "1-4"---Sound volume Package included 1 x Hearing aid 3 x Earplug (Different sizes) 1 x User manual 1 x Black Box 1 x USB charging cable without the charge head (Recommended with 1-2A charging head) Kindly Remind 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.Notice1. Please use the charging head and charging cable for charging. Otherwise the product may be damaged.2. If you need to use a replacement charger, please use a charger suitable for the product. If an inappropriate charger is used to charge the product, it will cause damage to the product.Applicable current charger:1-2A (this item only contain charging cable, no matching charging head)About shipping
Shipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

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If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.