Features: Strong Compatibility: ZigBee 3.0 smart products are well compatible with the ZigBee gateway hub, allowing you to customize your systems depending on your individual needs and security requirements, which allows controlling your all house appliances in one App. Stable and Reliable: This product is more stable to create a smart home system and can be connected up to 30 smart home devices. Energy Saving: Used with smart radiator thermostat (not included), heat your home to the right temperature only when needed with the heating schedule to save energy and costs on your energy. Easy to Fit:The smart gateway hub is designed with absolutely no wiring required and an extremely quick simple WiFi setup, no professional technical skills needed, ideal for green hand and pro as well. Mini Size: 7.1 x 6.8 x 4.0 cm, mini shape, stylish craft, and can be matched with family style. Specification: Color: White Size: 7.1 x 6.8 x 4.0 cm Weight: 30g Wireless Protocol: Wi-Fi802.11b/g/n Zigbee802.15.4 Input Power: 5V 1A Packing List: 1 x Zigbee Gateway 1 x USB Cable 1 x User Manual