The Brain of Smart Home Automation:The hub enables you to control up to ZigBee devices such as plugs, switches, bulbs and sensors, etc. The smart wireless hub can pair up to 40 ZigBee devices . It is a must for all ZigBee products. App & Voice Control:A hub is required to control ZigBee devices by App and Voice. Fast Pairing:Using app to all ZigBee devices then one-tap to pair all. Smart Scene:Creating your own scenes according to time, temperature, weather, etc to run your smart home system. One App to Control All:Control all of ZigBee devices by free app . Easy to manage your smart home appliances. Colour:White Material:plastic Package Contents: 1 x Wireless ZigBee 3.0 Hub 1 x USB cable 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.