About this item 【Smart APP Control】 Works with Amazon Alexa/Google Home/Smart Life App under WIFI mode. (support IOS, Android smartphone) 【Voice Control】After conect the APP:simple to send a voice command to get it to work,saying "Alexa, turn on the projector", ”change the color to blue”, ”set the brightness to 50%”;Note:the star is Green. 【NOISE FREE 】This nebula projector designed under advanced noise reduction technology,won't make any noise while work. 【Flexible Timing ON/OFF】It will turn on/off automatically as per your preset time, no worry about it to be ON all night. 【Ideal Gift&Room Decor】This night light projection is suit for decoration in parties, Birthday, festivals of Christmas, Memorable day, Graduations, etc. Best choice as a gift for family, lover, friends,children and teens.