Main Features: 1.Small USB mini design ensures its low cost but functional feature,performing well to solve the distance problem among Tuya ZigBee smart devices by transmitting stable ZigBee signal,which effectively solves the controlling problem. 2.This ZigBee repeater can expand its signal coverage to 15-20m,and no more need to purchase another with high cost,easily add the USB repeater into Smart Life APP into your Tuya ZigBee hub and then plug the USB into adapter or other available position for flexible usage. 3.Only One Hub Required:Effectively connect the Tuya ZigBee gateway and other ZigBee terminal devices beyond the effective control area of the gateway to realize relay networking by the ZigBee repeater,which just can not be directly used as a ZigBee hub for adding ZigBee devices,please confirm there is one Tuya ZigBee hub in your house before purchase. 4.Real-sense Whole House Linkage:Diffuse network signals, realize flexible and smooth operation of ZigBee network, and full coverage of smart signals for real-sense whole-house intelligence by ZigBee protocols.Indoor use recommended, if the signal needs to pass through multiple solid walls, it is advised to increase the number of repeaters according to the actual situation. Simple Installation and Wide Usage:USB straight-in style design ensures its simple installation,suitable well for home,offices,engineering project scenarios where many smart devices located. EU Plug Adapter: USB Interface, you can plug it into any usb connector. Can works with any DC 5V 1A Adapter in your home. Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. : color: White Material: ABS+PC+Metal Product Name:ZigBee Repeater Power Input:5V/1A Power Voltage:1.8V-3.8V TransmitPower:10dB Frequency:2.4-2.483GHz Operating Temperature:-10~50 Operating Humidity:95%RH Wireless Connection:ZigBee Voltage: AC100-240V Package Contents: 1 x Tuya ZigBee 3.0 Extender 1 x EU Plug Adapter(Plug style and color are randomly sent Do not accept designation) 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.