Wireless remote control is not required without chisel wall can be attached anywhere in the home Waterproof switch insulation wet hand can also touch away from the danger of High quality materials are flame retardant PC material has long temperature and pressure resistance service life Color:white Material:Plastic Package Contents: 1 x Transmitter 3 x Receiver 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.