Pair Volume-Adjustable Invisible Hearing Aids Rechargeable Portable Hearing Aids For Deafness Sound Amplifiers

Description: We are confident that you will appreciate the comfort of these hearing aids. They have been ergonomically designed to fit snugly in the ear and are unlikely to fall out. Additionally, they come with four pairs of earplugs of different sizes, allowing them to meet the needs of different ear sizes. They are also lightweight, so you will forget they are even there when you wear them in your ears. Note 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. If it still does not work, please check the chat window leave me a message. 5.Keep the ear plug clean.