HIGHLIGHT Countdown Button - Touch the Countdown Button, setting switches to work without wifi (10-90 minutes)US Standard 2 VersionsA variety of options, you can choose the horizontal version or the vertical version according to your needs.Power StatisticsView energy reports to properly track energy usage around your home. Know which devices consume the most energy and make plans to save on energy and electricity billsWifi+Bluetooth Dual ModeConnect to the network faster. Connecting to the Internet is 2 times faster than Wifi only20AIt can be used for high-power equipment such as water heaters and air conditioners, with a maximum load of 4400W.Requires zero line Need to have a zero line before it can be used, high-power products are safer and more stableOffline function When the device is offline, the APP will remind the device to be offline after 30 minutesAPP remote control Control the switch anytime, anywhere through the mobile APPVoice ControlUse with Echo and Google Home, Tmall GenieSet TimingTurn on and off the connected device at the specified time.3 kinds of restart status default on or off, or memory statusChild lock functionAvoid children's operation and protect children's safetyHistory You can view the history of the switchFamily Sharing FunctionCreate a smart home with your familySharing functionShare with family members for common controlGroup functionYou can turn off or turn on group devices together, which is more convenient Specification Product size: 120 x 72x 35mm (US)/86 x 86x 33mm (EU/UK)WiFi standard: 2.4GHZ 802.11b/g/nMaterial: ABS flame retardantPanel material: tempered glaRated current: 20AInput voltage: AC110 ~ 240V, 50 / 60hzMaximum load: 4400W Notice: 1.Don't lid on the gla panel when the switch is in electrical.The gla panel was lid on when it is in electrical. then the switch will not work.please Restart the main electric switch in your home. it will work.2. Bluetooth is only used for network signal connection and cannot be used alone. WIFI+Bluetooth is more stable