NOTE: None of the three supports Bluetooth. Option 1 ( Wired Hub) Supports both and ZigBee protocols. This device cannot be directly connected to WiFi(Needs to be connected to through the Ethernet Port). This is a dual- gateway, which can be used as a ZigBee Hub to connect with TUYA APP, or as a Hub to connect with . If you want your Zigbee smart device to connect to through this Gateway/Hub, you need to make sure your Zigbee smart device supports authentication protocol. When using the TUYA APP, Most Zigbee devices can be added to the gateway. When using the , you can add -certified Zigbee devices to the gateway. Only certified Zigbee smart devices can be added to the .Therefore, you cannot connect an uncertified TUYA Zigbee smart device to the through this Hub. When you use to connect smart devices, you need to make sure that your smart devices are using ZigBee protocol and have been certified by , otherwise it will not work, thanks Option 2 (ZigBee Wired Hub)Does not support protocol. This device cannot be directly connected to WiFi(Needs to be connected to through the Ethernet Port). Specification: Model Number: ZigBee Gateway Hub 3.0 Gateway Hub; USB power supply: 5V/1A(Power adapter not included); Working temperature: 10C-55; Working humidity: 10%-90% RU; Storage temperature: 10C-55; Storage humidity: 10%-90% RH; Network protocol: Zigbee IEEE 802.15.4 Product type: Wired gateway(Needs to be connected to through the Ethernet Port.); Firmware upgrade: OTA support; Size: 78x78x25MM; Option 3 (ZigBee Wireless Hub)Does not support protocol. This device can be directly connected to WiFi(Not support 5Ghz W network). Power adapter not included. Steps to add child device( Accessories): Add and manage sub-devices; 1.Sub-device additions: (1)Long press the reset button of sub-device to make -device enter the standby state (the indicator lights on).(2)Short press the gateway reset button to make the gateway enter -device adding state (steady blue, ashing purple).(3)Devices will be automatically added to the gateway. After the addition, the of sub-devices will appear in the APP (sub-devices will be in the room of the gateway by default after being added); 2. Sub-device settings: Long press -device to enter Settings; 3. Remove child device: Since there is no option to directly remove -device in the gateway in the for , it is necessary to remove -device from the TUYA APP, and For the will remove it synchronously. Color: White Material: plastic Package Contents: 1 x Gateway Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.