Feature: Specification: 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 make it smart. More importantly, your traditional switch and this smart module can work independently under non-interfering mode. Features: 【Mini Body】Designed mini body, which suits for most of amounting boxes, switches and wall sockets. 【Support Two-way Control】This kind of switch module can achieve 2-way control after the simple physical wiring. And you can still manually control the light by the original switch. 【APP Remote Control】It is convenient to connect the module to Smart Life APP via WiFi connection. After you connect the switch module to APP, you can remote control it anywhere and anytime, which provide a comfortable and smart life. 【Voice Control】This switch module can work with Alexa, Google Home Assistant via simple voice command, which is really convenient to control the appliances on/off when you are busy. 【Sharing Function】Sharing the WiFi curtain module with family members by Smart Life APP to control together. Specifications: Type: 1CH Smart Module / 2CH Smart Module (Optional) Material: ABS Voltage: AC 100-240V, 50/60Hz Max. Load: 3A Operation Frequency: 2.405GHz-2.480GHz Operation Temperature: -10℃~40℃ Protocol: Zigbee 3.0 Operation Range: ＜100m IP Rating: IP20 Warranty: 2 years Certificates: CE, RoHS Item Size: 39 * 39 * 18mm / 1.54 * 1.54 * 0.71in Item Weight: 30g / 1.05oz Package Weight: 37g / 1.31oz Package Size: 6 * 4 * 2.3cm / 2.36 * 1.57 * 0.91in Package List: 1 * Smart Module 1 * User Manual (English) Package List: 1 * Smart Module 1 * User Manual (English)