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