This product is a wireless DIY WiFi switch, a 4-channel WiFi switch module with three operating modes: Inching, Self-locking, and Interlock. It supports remote control via the Tuya Smart Life app and voice control through Google Home. You can use it for various DIY projects and it is widely applicable in lighting, electric curtains, motors, and more. It supports WiFi network connectivity and allows multiple WiFi smart switches to be managed from one smartphone. The device supports status tracking, providing real-time device status updates through the Tuya Smart Life app. You can remotely turn on or off connected appliances such as lights, electric rice cookers, electric curtains, access control systems, and other devices. Each device supports up to 8 scheduled, countdown, or loop tasks. Voice control is compatible with Google Assistant. Name: WiFi Relay Module Input: 5V USB / DC 7-32V Output: 10A Max, 4-channel WiFi: IEEE 802.11 b/g/n 2.4GHz Color: Black Material: ABS Size: 74 x 74 x 18mm Package Contents: 1 x WiFi Relay Module Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3cm.