(A Pair)USB Mini Hearing Aids Amplifier Charge BTE Audifonos Deaf Sound Amplifier Noise Reduction

Specifications:Color: Blue, Beige(Optional)Charging Type: USB chargingMaximal Sound Output: 118dB ± 4dBFrequency Range: 400Hz-3800HzEquivalent Input Noise Level: ≤ 30dBInput Voltage: AC110-220VOutput Voltage: DC5VRated Power Supply Current Consumption: ≤ 2mA1) Why there are some background noise?Actually, it is the electric current sound existing in all good machines. Generally, the higher the power, the greater the static sound.Turning on after put it in ears, then turn up the sound gradually. Generally, You will get used to it after 2-3 weeks.2) What causes the squeal?If the ear dome is not inserted well into ear canal or air leaks at the ear dome edges, when the device is close to hand or wall, a certain amount of sound will go back into the microphone. The sound is re-amplified which causes that annoying whistle.Try and select suitable ear dome. Put the ear dome into the ear canal and make sure it fits snugly inside. Turning on the device after put it in ears.3) Why the worked pretty well for a few days but a few days latter them do not work？Please make sure the device were fully charged.PLease noticed that the device that you were having probl with. Whether there is earwax on the earplug? Once you cleaned that, they will work betterPackage Included:1x Voice Sound Amplifier Device (High Quality Box Package)1x Plug1x USB Cable1x Brush1x User ManualQuickly ChargeSound amplifier charging about 6 - 8 hours can be full and about 80H+ can be used. hearing assistance devices allows you to easily communicate with others, Provide a "boost" for your better life.Double Noise Reduction Hearing AmplifiersIntelligent audio processing, dual filters, remove all kinds of noise.One button switches three different modes, no matter at home, on the road or in the vegetable market, it can easily reduce noise.Suitable for Left or Right EarThe earplugs are made of soft silicone material, which will not hurt your ears for a long time. The ear hook can be rotated 360°, and both left and right ears can be used.Small Size and Easy to CarryEasy to carry where you go.Hard ABS exterior, soft silicone interior.Big enough to hold 2 hearing aids.Keep your hearing aids protected from moisture and debris.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.