Highlights: Voice Control: Support for Alexa voice control of the wall switch, the panel light will show on/off status when the sound changes. Support for Amazon Alexa and for Google Home voice control, support for SIRI voice control. APP supports 22 languages worldwide, including Chinese simplified and traditional, English, Russian, Spanish, Portuguese, German, Italian, etc. High Sensitivity: Highly sensitive touch keys, waterproof and shockproof, can be used to control lights or household appliances. You are able to view real-time light status on your smartphone utilizing this touch light switch. Safe & Reliable: The bottom box is made of ABS V0 fireproof material and the touch panel of tempered glass with 3mm thickness, first-class quality. Ultra-wide voltage input and output, can support 90V-250V voltage range, with "L" and "N" double-line wiring, more safer. The LED backlight of the remote wall switch allows you to easily find and turn on the lights at night. Convenience: The WIFI wireless smart switch with FCC, ce, RoHS certification can access the local 2.4G router to achieve networking in no need for a central control host and other external equipment. With mobile app, WIFI control allows youto remotely turn on/off LED lights anytime, anywhere. Time Switch: You can manually set the off delay function so that you can turn off the lights easily. A key used by a shared family, an account can be shared with many people, and administrators can assign permissions. Specifications: Condition: Brand New Shell material: Flame retardant ABS Panel material: Tempered glass Color: Black + white Plug standard: US standard Optional type: 1 Gang, 2 Gang, 3 Gang, 4 Gang Control mode: APP control/touch switch Terminal platform: Support for Android/IOS Transmission method: WIFI communication Working voltage: AC 90-250V Control distance: Infinity (under 2G/3G/4G/WIFI network) WIFI frequency: 2.4GH z 802.11 b/g/n Power supply mode: "L" and "N " double-line supply System: Support for IOS 6.0 /Android 2.3 and above Package List: 1 * WIFI Smart Switch 2 * Screw 1 * User Manual