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 hubs 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