1Pair Rechargeable Invisible Digital Mini Hearing Aids Enhancer Voice AmplifierColor: BlackFrequency Range: 400-4000HzMax OSPL90:<=120dB ± 3dBAverage OSPL90: <=103dB ± 4dBTotal Harmonic Wave Distortion: <=7%Reference Test Gain: 23dB ±5dBEQ Input Noise: 29dB ±3dBBattery: Built-in Lithium Battery Features:1.It looks like a bluetooth headset, which makes you feel more confident, you don’t have to worry about discrimination anymore.2.A Mini design Hearing aid for portability, invisible and convenient to carry. It makes you feel more comfortable.3.USB rechargable, durable and reliable for long time(180 days) use.4.It can greatly reduce noise, provide good sound quality. And help you hear the sound clearly and loudly, whether you are indoors or outdoors5.The weight is less than 10 gram, SUPER light weight.6.It just needs 1.5-2 hours to be fully charged,but it can be used for 10-16 hours in a quiet environment. Only 10 minutes of charging will have a 1.5 hours standby time.7.Shockproof/Dropproof/user-friendly design,making it for a long time use8.We have three different size of hearing aid earplug to choose from ,It will better fit your earhole and won’t feel bloated and painful after you have wore it for a long time. Specifications:- Maximum OSPL90: ≦120±4dB- High frequency average OSPL90: 103dB±4dB- Total Harmonic Wave Distortion: ≤7%- Frequency range: 400-4000Hz- Input noise: ≦ 29DB±3- Equivalent input noise level: ≦ 35dB- Total harmonic distortion:≦10%- Frequency response range:300Hz-3500Hz- Rated power supply current consumption:≦60mA- Work time : 10-12hours- Charging time:90min-2hours- Charging case working current:≦70mA- Charging case working voltage:3.7V- charging case charging time:90 min- Hearing aid charging current:≦30mA- Hearing aid charging voltage:4.2V- Hearing aid charging times(Double machine):3-4 times Package Included:2 x Hearing aid1 x Case1 x User Manual Listings for hearing aids must include the following FDA disclaimer: "According to the FDA, it is in your best health interest to obtain a professional medical evaluation before purchasing a hearing aid and you are encouraged to do so before bidding on this item. If you choose to not obtain a medical evaluation before purchasing this item, I am required by law to provide to you and obtain from you a signed written waiver of the medical evaluation, and I am required to provide to you a copy of the User Instruction Brochure for a hearing aid, review the contents of that brochure with you, and afford you time to read the brochure. You must provide to me either a signed statement from a physician or a signed waiver before I will deliver this item to you. Upon your request, I will also provide to you a copy of the User Instructional Brochure for the hearing aid or the name and address of the manufacturer or distributor from whom a User Instructional Brochure for the hearing aid can be obtained." The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.PaymentDelivery detailsTerms of salesAbout usContact usPayment1.We accept PayPal,Credit card,Debit card,Apple Pay,Google Payect as payment. 2.You can go ahead and check out price with ebay system once the auction closedDelivery detailsWe ship packages by USPS or UPS --3-7 working days . ~~Items are generally shipped out after payment has been verified. ~~Please provide your correct and detailed address and your phone number to ensure the delivery on time. We are not responsible for wrong or undeliverable address. If you need to change your address, please change in paypal befor you pay.Shipping address will refer to the address in Paypal Terms of sales = Replacement/Exchange We accept exchange/replace item within 30 days when Buyer receive merchandise. Buyer will pay the return shipping cost regardless any reasons. All returned items must be received in new,unused condition to received refund. = Defective products must be returned within 30 days from the RMA issuing date we will change another one for you or refund your money back. = If you buy the wrong products, plese inform us as soon as possible. But if your order has been sent, then all the costs(including original freight, handling charges and the return freight, etc. ) are for your acount. = We will be responsible for all kinds of approved return shipping cost for wrong product we sent only.About us We are professional hearing aids seller on ebay. we only sales hearing amplifier. And all the items was ship from local warehouse. Fast delivery and good service. Contact us Contact us if you have a complaint, or plan to leave us a negative or neutral feedback. Please contact us and we will be glad to help solve the problem.