86 In-wall concealed structure, easy installation mode, no need to remodel the wall, any match. Smart home interconnection, scenario mode, device automation, remote APP control. You can easily achieve touch on the lights, curtains, air conditioning, and other intelligent equipment precision control, no hands, compatible with some of the graffiti ecological equipment. Custom linkage scene, can quickly switch scene mode. 4-way composite switch, ordinary switch scene switch any switch. App to modify the switch or scene name, automatically synchronised to the switch LCD display.80 x 160 resolution. 4Time calendar, weather information screensaver function. Millimetre wave human body sensing radar. support power-on, power-off memory. support zigbee wireless connection. 485: can support external input control, also can output control external intelligent devices. (Customisation required) Colour: C: Black Material:ABS+PC Package Contents: 3 x Tuya Zigbee Smart Scene Switch