Two Way Smart Relay Switch. FEATURES: The Small and Compact Smart Switch is Used for Different Kinds of Switch Boxes, Even the Smallest EU Standard Switch Box. Convenient to Automate Your Home Appliances on Homkit App with Your Smartphone or Your Voice Command. Support 3 Triggering Modes That Pulse Mode (works with Push Button Switches), Edge Mode (Works with SPDT Switches) and Following Mode (Works with Switches with ON and OFF Mark and Sensors with Dry Contact Output). Specifications: Input: AC 100-240V 50/60Hz 10A Max Output: AC 100-240V 50/60Hz 10A Max Wi-Fi: IEEE 802.11 B/g/n 2.4GHZ Material: PC V0 Dimension: 42.6X42.6X20mm . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.