It is a USB charging hearing aid, no need to replace the battery frequently. It can be fully charged for about 2-4 hours, can be used for 48 hours, and the battery life is 5 years.
You can choose the appropriate mode according,Just adjust to the appropriate mode and volume. give your living environment to bring you a better experience.The 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
Hearing Aids, Enjoyee Hearing Aids for Seniors Rechargeable Hearing Amplifier with Noise Cancelling for Adults Hearing Loss, Digital Ear Hearing Assist Devices with Volume Control (Black) (Blue)