The cute cat is connecting the transformer to the base (DC-5V output 3.5W transformer). To connecting the transformer to the main (power supply, out of children reach).
Charging time on first use which needs 12 hours on charging.
After the first charging 12 hours, thereafter, 7 hours charging is enough for a maximum 11 hours use.
When charging time is matured, simply lift the device from its smart charger and switch located under the device in order to turn lullaby/night light on or off.
A short push starts the night light mode. And with a long push (2 sec.) the light + lullaby mode. The lullaby will auto-off after 15 minutes.
Another short push will then turn the device off completely.