1、This is a plug-in model with no built-in rechargeable lithium battery, and must be plugged in for use (UBS plug-in)

2、Usage steps:

1. Put clean water (95% full) into the water tank, 2. Turn on the switch on the lamp holder; 3. Drop 3 drops of detergent into the water and wait for about 1 minute to release the bubbles in the water tank. 4. Immerse 2 jellyfish in water, and they will float up and down (if there are some bubbles under the jellyfish's head, use a stick to flip them over to release the bubbles, otherwise the jellyfish will keep floating on the water surface)

Note: Do not let the light bulb work for more than 8 hours a day to save the service life of the motor. Change the water in about two weeks as it may become dirty.