Transparent texture material: artistic experience, beautiful tactile feeling; Safe and secure flame retardant material ; Tempered glass HD, does not fear scratches from sharp objects; Very sensitive touch detection even though wet hands can also touch. Voice control: simply with your voice via Amazon Alexa and Google Home Assistant, you can enjoy the convenience of to control the lights in your home. It is perfect for applying those moments where there are no more hands left use or enter a dark room. Smart phone remote control: you can control from anywhere. distance the lights at a distance anytime and anywhere. And it also supports device sharing function, your family members can also control it remotely. distance, let the family enjoy the fun of smart life! Timer and countdown function countdown: the function allows you to count down your switches to automatically turn on/off at certain times that you have defined in advance, as you can set the time to turn on the office lights. Easy installation: the device requires a neutral wire to complete the installation and can directly replace your existing traditional switches. Please note that the router must be 2.4 GHz (5.0 GHz WiFi is not supported), but there is no limitation for the phone network smart (2G/3G/4G/WiFi network is ok) and one button simply applies to a light.