Note:
◆It is not waterproof, Don't put it into the water
◆Please take out the battery if don't use it for a long time. Otherwise the components will be rotted by time. rotten liquid from battery.
◆Don't use it at high volume for long time. Otherwise it will injure your ear. If you feel uncomfortable, please stop using.
◆Please clean the products all the time, avoid ear plug and sound collecting hole being blocked by foreign objects. It will affect the effect of sound amplifier.
◆Avoid shocking, falling the product. Don't keep or use it in environment of humid of high temperature.