[A variety of functions] 1. Signal view: Monitor signal status in real time.2. Voice control: It can be easily controlled using voice through for Amazon Alexa and Google Home.3. Offline reminder: Our smart switches also have a device offline reminder function, which can help users understand device status in a timely manner, improve device management efficiency, and effectively prevent device failures.4. Device sharing: Through the device sharing function, every family member can easily enjoy the convenience of the smart repeater through his or her mobile phone. Specification:Type-C input: DC5V 1AOutput power: 20dBIndoor distance: 20-50mOutdoor distance: more than the 300m (open area)Working temperature: -10~55Working humidity: 10%~90%RHWireless protocol: 2.4GHz 802.11b/g/n, Zigbee3.0Size: 5.9x3.5x1.2cmMaterial: plasticcolour: WhitePrecautions:1. This product needs to be used with a Zigbee gateway.2. It is recommended to purchase multiple repeaters in different spaces. Package Contents:1 x Wireless smart 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.