Usage Tips:This product is a wireless remote control with simple and fashionable appearance. This product can support 280-870MHz rolling code and fixed code remote control. This product can support the copy of multiple of remote controls. There are three operating methods for this WIFI Remote control: Blue distribution network, SmartConfig distribution network and connection to WIFI distribution network, which can be operated by customers according to their own preferences and habits. Distance: Up to 100 meters. 4 programmable function keys. This product can be reused times continuously. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Colour:Black Material:ABS Package Contents: 1 * Rolling shutter door 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.