Specification: Name: Wifi Remote Control Intelligent Socket Plug Type: EU Standard Rated voltage: AC 90-250V Maximum load current: EU Type:15A US Type:10A Maximum power: 3750W Wifi frequency: Wi-Fi 2.4 GHz Support System: IOS Control Model: Manual control /WIFI control switch APP name: Apple Homekit Feature: A)No Hub required for set up: Immediately start controlling your Socket with quick and easy set up using wifi on your compatible Apple iOS device with the Apple Home App. B)Voice Control with Siri: Control your Socket with voice integration through Siri Ask Siri to turn on or off, and more. D) It works with Apple HomeKit, so you can easily control connected bulbs using Siri on your iPhone, iPad, iPod touch, or Apple Watch. No require to install others APP. Tips--App Be sure that you are using 2.4GHz WiFi when connecting with the smart bulb. And WiFi must be detectable status. Many routers have 5 GHz and 4 GHz network and your phone will always automatically connect to the 5 GHz network. So, you have to completely turn off your 5 GHz network by going to your router settings (enter the router IP address into your internet browser, usually something like 192.168.1.1), forcing your phone to connect to the 4 GHz network. In addition, the router encryption mode must be WPA2-PSK type and the authentication type must be AES.