Features: Smart Gateway, APP Remote Control: the smart gateway is the control center of the ZigBee devices, you can use your smart phone to control remote security kit system connected to the hub anytime, anywhere. Voice Control: compatible with smart speakers such as Alexa and Google Home with the Smart Life APP, easily control ZigBee devices via voice commands. Support Star/Tree/Mesh Networks: stronger signal, larger coverage, more stable connection, and wide compatibility. Smart HUB Whole House Protection: support add Siren alarm, PIR, water snesor, temperature and humidity sensor, door sensor, motion sensor, power plug, etc., bringing a safer and more convenient life. Support Zigbee 3.0 Protocol to Add Zigbee Subsystem: multi-device linkage, one ZigBee gateway can connect to sub-devices 45+. Share Device Function, Create Smart Scenes: single device sharing or family group sharing, anyone can control the intelligent electrical equipment at home on the APP. Specifications: Material: ABS APP Download: Smart Life USB Power: 5V/1A USB Power Supply: 5V/1A Wireless Protocol: Zigbee IEEE 802.15.4 Communication Protocol: Zigbee 3.0 Frequency Band: 2.4~2.485GHz Standby Power: 0.5W Max. Output Power: 19dBm Cable Interface: RJ45 10/100M ethernet port Firmware Upgrade: Support OTA Number of Sub-devices that can be Added: 128 Working Temperature: 0~55C Working Humidity: 10%~90%RH Storage Temperature: -10~60C Storage Humidity: 10~90%RH Cable Length: 1M Item Size: 78 * 78 * 25mm / 3.07 * 3.07 * 0.98in Item Weight: 56g / 2.01oz Package Weight: 110g / 3.88oz Package Size: 9.6 * 8.6 * 5cm / 3.78 * 3.78 * 1.97in Package List: 1 * Gateway 1 * USB Cable 1 * Manual (English)