Remote Control – Instantly turn the light on/off wherever you are through the Tapo app. Voice Control– Manage your switch with voice commands via Amazon Alexa or the Google Assistant. Schedule – Preset a schedule to automatically manage devices. Away Mode – Automatically turn the light on and off at different times to give the appearance that someone is home. Tool-Free Battery Replacement - Easily replace batteries after installation, no need of other tools. No Neutral Wire Required - Super easy wiring. No neutral wire required. Hub Required - The Tapo Hub is required to support all smart features. Tapo H100 (sold separately).