This product is a wireless DIY WiFi switch, a 4-channel WiFi switch module with three operating modes: momentary, self-locking, and interlock. It supports remote control via the Tuya Smart Life app and voice control through Alexa and Google Assistant. You can create various smart home projects and it is widely used in lighting, electric curtains, motors, and more. Supports WiFi network connectivity. Allows multiple WiFi smart switches to be managed from one smartphone. Supports status monitoring: device status is updated in real time within the Tuya Smart Life app. Enables remote on/off control of connected appliances such as lights, electric kettles, rice cookers, electric curtains, and access control systems. Supports up to 8 scheduled, countdown, or loop tasks per device. Voice control compatible with Alexa and Google Assistant. Name: WiFi Relay Module Input: 5V Micro-USB or DC 7-32V Output: Up to 10A, 4-channel WiFi: IEEE 802.11 b/g, 2.4GHz Color: Black Material: ABS Size: 74 x 74 x 18mm Package Contents: 1 x WiFi Relay Module Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations between the product color in images and the actual product. Measurement error allowed is +/- 1-3cm.