Low-cost ZigBee Signal Solution: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 caused by blocked signal under one Tuya ZigBee hub only for devices over long distance Expand Signal Coverage to 15-20m with Tuya Smart APP Added:No more worry about distance problem for signal interrupt,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 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 Real-sense Whole House Linkage:Diffuse network signals, realize flexible and smooth operation of ZigBee network, and full coverage of smart home system 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 Product name: Zigbee repeater Wireless fidelity: Zigbee 3.0 Transmit power: +21dBm Emission current: value 200mA. Working voltage: DC5V/A Working temperature:-10 ~ 55 Working humidity: 0% ~ 99% RH Wireless distance: 100m (open distance) Waterproof grade: IP66 Installation: free installation (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 2 * USB Repeater 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.