Aqara Smart Light Switch For Home Automation (With Neutral And, And Set Timer. Product Features ??NOTES?An Aqara Hub is required and sold separately. Requires a secured 2. 4 gigahertz WiFi network connection. The Aqara M2 or M1S Hub can connect up to 128 devices(*use of a repeater such as the Aqara Smart Plug or Aqara Smart Wall Switch(With Neutral) is required). Operating Temperature:0C?40C (32F?104F),for indoor use. Operating Humidity:0%~95% RH, Non-condensing. ?UNAUTHORIZED ENTRY DETECTION?Whenever the door/window opens unexpectedly, the Aqara Door and Window Sensor will send an alert notification to your phone and activate the local alarm on the Aqara Hub. ?HOME AUTOMATION?The Aqara Door and Window Sensor can control other Aqara connected devices as the status of the door or window changes. ?VOICE CONTROL?Compatible with Apple HomeKit, Google Assistant, and Alexa for a hands-free experience. Ask your favorite voice assistant to control the lights in different rooms. ?MULTIPLE SAFEGUARDS, SAFE AND REASSURING?Adopts V-0 grade flame-retardant panel and withstands high temperature. In addition, please feel free to contact us. 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!