1、Support No Network Control: Smart small switch is compatible with WiFi and RF433 remote control, so you can turn on off lights and electrical appliances without an internet connection. 2、APP Control: Smart WiFi switch supports for Tuya Smart Life app, which is widely compatible, stable interaction and stable use. You can check the status and feedback remotely. 3、Voice Control: This smart WiFi switch module supports smart speaker voice control, compatible with for Tmall Genie, Voice Control for Xiaodu, Voice Control for Xiaoai, etc. Easy to control, release your hands. 4、Timing And Power Failure Restart: Three kinds of timing methods: timer, cycle timer, countdown timer. Three kinds of power failure restart mode: on, off, before power failure state. 5、Flexible Installation And Use: Small smart WiFi switch supports three wiring methods. One control multiple, multiple control one, group control. Meet your different scenes and equipment use requirements. Item Type: Smart WiFi Switch Material: ABS Size: Approx. 4 x 4 x 2.1cm / 1.6 x 1.6 x 0.8in Gross Weight: Approx. 41g / 1.4oz Power: 16A App: For Tuya Smart Life WiFi: IEEE 802.11 b, g, n 2.4GHz Remote Control Frequency: RF433MHz Usage: Home Lighting and Appliance Smart Modification 1 x Smart WiFi Switch 1 x User Manual