The best remote control distance for the remote control is 23 feet, obstacles will affect the control effect. 2. There is button battery inside the remote control. Please replace the button battery if it run out. 3. Do not put the moon lamp under the blazing sun for long time 4. Do not put the moon lamp on the fire or close to high temperature source, to avoid the fire accident or explosion. 5. This moon lamp is a decorative light, please do not use it like a toy.