The Newgoal Wireless Jog Relay Momentary/Self-Locking Switch Module Is Product Details ??Remote control?: Turn the relay module into an integrated smart device through the existing 2.4G Wi-Fi network, you can use the eWelink application to remotely control the opening / closing of electrical equipment from anywhere ??Voice Control?: This wifi switch module can be used with Alexa / Google Assiatant / IFTTT, you can use voice control to turn on / off household appliances. ??Working mode?:In the jog mode (instantaneous mode), if you press the button on the application (or the manual button on the development board), the switch will turn on, and then automatically turn off after 1 second. In the self-locking mode, when you press the button on the APP (or the manual button on the panel) once, the relay will open. When the button is pressed again, the relay will turn off. ??DIY project?:Smart lights, fans, garage doors, humidifiers, thermostats, etc. eWelink also provides other functions such as timer setting, shared control and scheduling. You can also set routines in the Alexa or Google homepage to make things more convenient. ??Set WiFi?: Only support 2.4G WiFi network connection, not support Mesh WiFi system and 5G WiFi network! Download the ewelink APP and register an account. Then follow the instructions to complete the WiFi configuration. (If you plan to install it in a place where the WiFi signal is weak, you may need a wifi extender) Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.