Fangrui Product Details [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 1a Output Power: 20db Indoor Distance: 20-50m Outdoor Distance: More Than The 300m (open Area) Working Temperature: -1055working Humidity: ~rh Wireless Protocol: 2.4ghz 802.11b/g/n, Zigbee3.0 Size: 5.9x3.5x1.2cm Material: Plastic Colour: White Precautions: 1. This Product Needs To Be Used With A Zigbee Gateway. 2. It Is Recommended To Purchase Multiple Repeaters In Different Spaces. Package Conte