This smart wifi module with mini design suits for wall switch box,and easily hide it into your hidden wall switch box of your traditional switch without any influences on your original decoration style to smart.More importantly,your traditional switch and this smart module can work independently under non-interfering mode. [ APP Remote Control ]for Tuya/Smart Life/ enables you to control all Your devices anywhere with one tap via smart phone, no distance limitation. The device has a small size, which only takes up a little space during installation [ Hands-free Voice Control ]Tuya WiFi Switch is compatible for Home Assistant. It allows you to use your voice to control home devices and enjoy hands-free experience [NOTE] 1.Please cut off the power before installing the device. 2.The router must be 2.4GHz (5.0 GHz WiFi is not supported), but there is no limitation for smart phone network (2G/3G/4G/WiFi network is ok). Color: White Material: PC+ABS Output: AC 100-240V 50/60HZ nput: AC 100-240V 50/60Hz WiFi: IEEE 802.11b/g Start method: Touch/Mobile APP/Voice Speaker Maximum current: 16A Package Contents: 1x Switch module 1x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.