SPECIFICATIONSBrand Name: cooloCertification: CE,FCC,RoHSChoice: yesEU LVD Voltage: Low voltage: Below 50Vac or 75VdcHigh-concerned chemical: NoneLinking method: ZIGBEEModel Number: Zigbee Button Scene SwitchNot support: smart life/tuya app/ZHA(Zigbee home automation)Origin: Mainland ChinaSmart home platform: OtherTIP: need ewelink zigbee hub to pair with ewelink app, the hub not included on the packageVoltage: 5V/2A 📌 Important Pre-Purchase Notes (Please Read Carefully): 1)A Ewelink zigbee Gateway is Required(not included)2)Not support smart life/tuya app3)Support Ewelink app ONLY Specification:•ZigBee Communication Method :The Ewelink ZigBee Smart Button uses ZigBee communication method, ensuring a stable and reliable connection.• Multi-Scene Linkage Switches :With multiple scene linkage switches, you can easily control multiple devices with a single button.• Voice Assistant Compatibility :The Ewelink ZigBee Smart Button is compatible with Alexa Voice Assistant, allowing you to control your devices hands-free.• Ready-to-Go Assembly :The Ewelink ZigBee Smart Button comes ready-to-go, so you can start using it right away without any complicated setup or installation. Package included:1*sensor(zigbee hub required)1*manual