EAGWELL Voice Control Rotating Crystal Stage Light with Blinking When you with Music The LED Crystal Strobe Light Made of 100% Hight Quality Plastic and Metal With RGB LED Color. Function: Voice control function make the light shining follow the music rhythm, So item Voice Control Strobe Bulb when you play music it will twinkle by automatically. Perfect for Bar, KTV, home decoration, Holiday Christmas ,Dance Hall, and the stage ,Indoor using and so on. Note 1.) Make sure the bulb is plugged firmly into the socket 2.) The socket must not be connected with an extension cord for best experience. 3.) If the bulb does not rotate please remove and re-insert into the socket to make sure it is firm and place well into the base.