Invisible Digital Rechargeable Hearing Aids Sound Amplifier Hearing Aid Noise Cancelling

Product Features: 1.Recharge Your Life：Our hearing aids offer Adjustable, Crystal Clear Hearing Support.A clear hearing experience with no feedback (whistling, squealing, etc.) and adjustable.You can make phone calls, talk to friends and family, listen to music, watch TV, even hear birds clearly, etc. 2.Nearly Invisible：No one needs to know you are wearing hearing aids. They discreetly rest in your ears, with 3 domes sizes to ensure a secure and comfortable fit. 3.Easy to Use：Take the hearing aids out of the charging case and pop them in your ears. Use the simple push button to turn them on and adjust the volume. That's it! Easy to charge, easy to use - every day. 4.Battery Lasts 48 Hours：Complete with convenient portable charging case, you can recharge your aids up to 4x giving you 48 hours of hearing time, leaving you free from stress, never having to worry about finding power. Simply plug the case in to charge the aids and the case. 5.Perfect Gift for Your Family: The longer hearing loss goes untreated, the brain's ability to understand and decode speech decreases. Hearing aids are a perfect gift for the elderly to bring them back to everyday life. They can hear love words and laughter from everyone and drive their loneliness away. 6.Color:Wheat ​ ​Product Parameter: ​1.Maximum OSPL90:≤117dB±3dB ​2.High Frequency Average OSPL90:109dB±4dB ​3.Average Gain:25dB±5dB ​4.Frequency Response Range:400Hz-4500Hz ​5.Equivalent Input Noise Sound Level:≤29dB+3 ​6.Total Harmonic Distortion:≤7% ​7.Related Power Supply:≤6mA ​8.Adaptation range: mild - severe ​9.Working current: 1.4mA

Prompt 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.