This product as a reinforced two-way intelligent switch, has been redesigned to lift the safety and performances to the optimal level. The antenna is hidden-into the interior that ensures you peace of mind to use it to control your devices. Additionally, the interface S-1 and S-2 are colored to gray which is distinguished from other input and output interfaces in order to further remind you not to connect the strong current to both of the interfaces. The small and compact intelligent switch is used for different kinds of switch boxes, even the smallest EU-standard switch box. Convenient to automate your home appliances on eWeLink app with your smartphone or your voice command. Features: Support 3 triggering modes: 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). Support to connect dry contact sensors and various types of extenal switches, such as SPDT switches and NC/NO push button switches. Only takes up very little space when installed into various types of switch boxes, even the EU-standard switch box. Compatible with Amazon Alexa and Google Assistant, to turn on/off devices in a completely hands-free way. Get your house lighted via your phone, to control appliances in your home, anywhere and anytime. Falling edge-triggers the relay to reverse in level jumping. Perfect for the push button switch which is triggered once after being pressed and automatically bounced back. Arrange the begin and stop schedule for devices to have them automatically switch on/off, reducing needless power consumption. Can know your device is on or off through the smartphone even if you're not at home. Specifications: Color: white Material: PC Input: 50/60Hz 10A max Output: 50/60Hz 10A max Item size: 43 * 43 * 20mm / 1.7 * 1.7 * 0.8in Item weight: 43g / 1.5ounce Package size: 50 * 50 * 25mm / 2.0 * 2.0 * 1.0in Package weight: 50g / 1.8ounce Packing List: 1 * Switch