1. Since this product uses ion batteries, please do not expose this machine and adapter to water drops, water immersion, high temperature, violent collision and fire, so as to avoid accidents and dangers.

2. Don't use it in a particularly hot, cold, dusty, humid and dry environment to avoid direct sunlight and rain.

3. The service life of the battery may vary according to the use conditions and production time. If you need to replace the battery of this product, please dispose of the battery (recycle) according to the regulations to avoid pollution.

4. Do not squeeze, pull, knot or hang heavy objects on the usb cable, so as to avoid damage to the insulation layer of the USB cable, resulting in short circuit or poor contact.

5. The 220V charger equipped with this product needs to be used by normal adults. When charging, please put the charger out of the reach of children to avoid danger.

6. To ensure that it is beneficial to children's physical and mental health, please do not use it in noisy environment for a long time, so as not to hurt children's hearing. The volume is related to the environment and distance, and parents can set it according to the actual situation.