A Wireless Jog Relay Momentary/Self-Locking Switch Module From Newgoal That Is Product Features ??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) Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!