1)2.4G WiFi(5G is not supported). 2)Android version above 4.0. 3)If your wireless router has set MAC address filtering,please enter the router background and turn off the MAC filtering function. 4)Must be used in conjunction with Zigbee gateway.You need to have a Zigbee gateway,Try to be close to the Zigbee gateway when pairing. Widely Usage: Wide Compatible and easy to setup, 5V 12V 24V Dry contact low voltage Zigbeee on/off controller,have two Working Modes:latching and momentary mode,Can be used for DIY garage door opener and other home appliances.press mode button on board to set work mode,work as zigbee button to DIY Smart garage door opener with momentary mode,works as wireless light switch with on/off mode. ZigBee3.0 Protocol, One-tap Pairing: Adopts ZigBee3.0 protocol, you can quickly add it to zigbee bridge, getting them paired via a single tap on the app， Multi Timer and Happy Share:Create countdown/count up/Single/Circle schedule as need.Share the control with familymember,Enjoy the convenience and happiness together. Voice Control: Works with your smart home（Amazon Alexa and Google Home） devices for completel voice control, remote control and intelligent timing, free your hands. Built-in 433MHz RF receiver, supports learning 433MHz RF fixed codes(not included). This smart ZigBee device must be used with a Tuya or ewelink gateway hub that supports the ZigBee protocol. It is inseparable from Tuya or ewelink ZigBee smart gateways. This product is a wireless switch, support jog/self-locking mode/interlock mode. Users can add devices to Zigbee Hub in APP Smart Life to remotely control connected home appliances or devices. In self-locking mode, customers can instantly and remotely turn on/off connected devices. When jogging mode, the default jog time is 0.5s, and the switch turns on and off immediately after 0.5s. No matter where you are, you only need to download an APP to connect to your Zigbee device and control it in the cloud. RF mode, you can use the RF433 remote control to control the board. Note: Please make sure you choose the correct model before purchasing,