Voice Control, Allows you to turn the light on and off with voice commands. Free to replace light bulbs, universal for LED lamps, energy-saving lamps, and incandescent lamps Easy to install, easy to screw on and use, instantly becoming a smart lamp holder Lamp holder connected to WiFi, remote control by phone anytime, anywhere, unaffected by distance, one click remote control Set the time for the smart lamp holder to automatically turn on or off Remote control Power Suplly:2 x AAA batteries(Not included batteries) Colour:White Material:Metal Package Contents: 4 x Light Socket 1 x remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.