Smart life APP Remote Control: Smart WiFi light switch, no hub required, works with Alexa and Google Assistant to turn on/off lights remotely when you are not at home. Note: The switch only supports 4GHz Wi-Fi network, does not support 5GHz Voice Control: You can ask Alexa or Google Assistant to turn on/off the connected lamp. Smart life APP control also allows you to turn on/off the light hands-free. No more worry when you are in a dark room and want to go to bed or find it hard to reach the light switch Timer & Schedule: Create a timetable to automatically turn on/off your smart lights, which is very convenient for you when you are away or forget to turn off the light Share control: You can share the smart switch with your family and control the lamp together, no extra hub or bridge is needed This smart wall switch is designed for voice control, which makes your life easier. It requires a neutral wire to work. Smart WiFi light switch allows you to turn on/off lights by voice command or app control no matter you are in the room or not. This smart switch Compatible with Alexa, Google Assistant to turn on/off lights hands-free. The smart switch requires 2.4GHz Wi-Fi network, does not support 5GHz. This smart switch supports multi-user control. All family members can share this smart switch to control the light freely without interference. The smart light switch can be timed to turn on/off automatically, making it appear as if you're at home when you're away. This smart switch is ETL listed, ensuring safety and quality. Please note that this smart switch does not work with 3-way and 4-way wiring. If you need to control 3-way or 4-way lights, please search "BOSON Smart WiFi Light Switch" on Amazon.