The Cmars Smart Plug, Zigbee Switch Mini Smart Outlet Is Compatible With St, ?Why Zigbee?: Have a bunch of devices on your Wifi network?Overcrowded home Wifi network, internet becomging less stable?No worries! Hub + Zigbee, Very responsive, fast switching, more stable and Truly Plug and Play. ?Easy To Install and Wide Compatible: ZigBee smart plugs that work with alexa, , ST, Echo Studio, Echo Plus 2, Echo Show 2 and other Hub ZigBee 3.0. (Hub Required). No third party app required. NOTES: Does not work with ST(1st). ?High Quality?Our zigbee smart outlet block use PC fireproof material, double insulation, 750 ? thermo-resistant and flame retardant. Double security protection, leakage protection,high network security. ?Smart Control: Alexa smart plug works with Amazon Alexa and Google home devices for complete voice control, remote control and Intelligent timing. ?What You Get: 2 x ZigBee Mini outlet, 1 x User Manual.Support worry-free warranty, 30 days free return, 12 months replacement/refund for manufacturer defective items. easy-to-reach customer service within 24 hours, plus lifetime technical support.