Product is a DIY WiFi switch without / Tuya 4CH WiFi switch module with 3 modes, including Inching, Selfl-ocking and Interlock. It supports remote control by Tuya smart life App as well as voice control via Alexa, home. You can DIY many smart home projects and it is widely used in lighting, electronic curtains, motors, etc. Supports WiFi network. Supports many WiFi smart switches on one smart phone. Supports status tracking: Device status timely provided to Tuya/Smart. Supports remotely turn on or off connected devices, e.g. light, electric, electric rice cooker, electric curtain, access control, etc. Supports up to 8 scheduled/countdown/loop timers enabled for each device. Voice Control: Compatible with Alexa "", for Home. Name: WiFi Relay Module Input: 5v Micro-USB / DC 7-32V Output: 10A Max, 4gang WIFI: IEEE 802.11 b/g/n 2.4GHz Color: Black Material: ABS Size: 74x74x18mm Package Contents: 2 x WiFi Relay Module Only the above package content, other products are not included. Note: