Description This moon lamp uses intelligent voice control, no physical switch is needed, just use voice to adjust the brightness and set the timer. Plug and play, no Internet or APP support is required, just connect to a 5V USB port to use. Three levels of brightness adjustment, energy saving and environmental protection, the annual electricity bill is less than 2 US dollars. It is a perfect gift for children or friends, both practical and beautiful, suitable for various occasions such as bedrooms and living rooms. .