Material: Quality PC material with modern design Portable Remote Switch: Can be installed on the wall, you can also just place it near you or anywhere you want Safety Wireless Switch: Switch itself is not connect with any electricity, no worry about kids touch Ideal For: Works with all kinds of indoor lights, such as ceiling lamp, wall lamp, LED and Bulb Please Attention: Package only includes switch panel, receiver is not included. If you want a switch kit (include switch board and receiver), please search "B07Y87B3LW" on Amazon. Programmable and Expandable 1) One switch can pair with multiple receivers to accomplish one switch control several lamps at the same time. 2) One receiver can pair with up to 8 switches to accomplish one lamp can be controlled by several switches. How to program the receiver with remote switch? Press the diamond-shaped button of the receiver until the light on it turns solid red, then press the remote switch once. Switch Parameters Product Size: 3.4*3.4*0.5 Inch(86*86*11 MM) Switch times: 600 thousand times Working voltage: 3V(CR2032) Package weight: 82~86g Life of the battery: 300 thousand times push Waterproof: IP54 Remote distance: 700m outdoor Remote distance: 50m indoor LED Light on the switch: Blue light