A Must for All ZigBee Product: This is a hub that connects to a variety of ZigBee smart products and is the bridge,as well as a control center for smart homes,which plays an irreplaceable role for all ZigBee products. App Smart and Remote Control: Adding devices,device reset,third-party control and group control to meet the needs of smart applications,are all supported by the hub.Simply use your smart phone to control remote security kit system connected to the hub anytime,anywhere. Stable and Reliable Wireless Networking: ZigBee signal covers a wide range of areas that is stable and reliable enough for normal work of any connected devices to the hub. Easy to Fit: The smart gateway hub is designed with absolutely no wiring required and an extremely quick simple setup,no professional technical skills needed. Specifications Transmission Protocol: Zigbee Operating frequency: 2.4-2.484GHz App/Platform: eWeLink Power support: 5V/500MA Power wastage: 2w Maximum transmission: WIFI greater than equal 20M, Zigbee greater than equal 50 distance Color: White Material: ABS Package Contents: 1 * Mini 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.