About this item Remotely Controlled by Free APP Led bulb wifi is remote controlled by the free app《Smart Life》on Smartphone, after it is set up, you can turn these bulbs on or off via your phone’s 4G network where you are. Voice Control Smart wifi bulb compatible with Amazon Alexa Echo and Google Home, no need for HUB. for example: “Alexa, turn on the lamp”. “Alexa, turn the lamp blue”. You must activate the Maxcio skill in Alexa before you can use voice and other functions the bulb according to your schedule and then smart bulb will turn on and off automatically. This will not happen the situation that forgetting to turn off the light bulb. and create a group and control multiple bulbs at the same time. 16 Million Colors and Adjustable Brightness You choose from 16 million colors and cool white light to change the atmosphere of your room. mood bulbs are perfect for living room, bedroom, office, restaurant, bar etc. Save your electricity load with the latest lighting technology.