2. Offline Reminder: This device offline reminder function helps users keep track of device status and effectively prevent device failures. 3. Device Sharing: Home Family members can control the switch from their own phones using the device sharing feature. 1. Three relay states: default on after power failure, default off, and memory function. 4. Group Control: Create smart groups for the switch and control multiple smart devices with one click through the app. For example, set up a "sleep group" and, when you're ready for bed, turn off all group devices with a single click., Weight: 0.29541943108 pounds, Manufacturer: ximie