Extend Your Tuya ZigBee 3.0 Signal - This repeater only can transit Tuya ZigBee signal, it can't work alone without Tuya ZigBee Hub.- Extend Distance: 20~30 meters The EU Plug Adapter is in the box if you choose kit option - USB Interface, you can plug it into any usb connector.- can works with any DC 5V 1A Adapter in your home. MINI SIZE Dimensions: 28mm*18mm*7mm Specification App Name: Tuya or Smart LifeWireless Protocol: Tuya ZigBee 3.0(can just work with Tuya ZigBee Hub, it can't work with other brands' Hub)Extend Distance: 20~30 metersDimensions: 28mm*18mm*7mmColour: WhitePlug Adapter in the box: EU Plug Please be noted the Tuya ZigBee Hub is not included in the box if you don't buy it in our store. What's in the box? 1 * Tuya ZigBee 3.0 Extender1 * EU Plug Adapter1 * User Guide More To Love ZigBee Roller Shutter Touch Switch ZigBee Garage Door Opener Controller Kit