Feature: 1.Low-cost ZigBee Signal Solution:Performing well to solve the distance problem among Tuya ZigBee smart devices by transmitting stable ZigBee signal.2.Expand Signal Coverage to 15-20m with Tuya Smart APP Added:No more worry about distance problem for signal interrupt.3.Only One Hub Required:Effectively connect the Tuya Zigbee gateway and other Zigbee terminal devices beyond the effective control. Support device: Support Routing Function; Work With Tuya Zigbee GatewayWork With ZigBee Bridge; Work With h-u-e BridgeWork With Hub; Work With Home Assistant Zigbee2MQTT TasmotaSpecifications: How to enter pairing mode :1) , The repeater is in pairing mode default (LED flashes)2) , the key entil LED flashes enter pairing mode3) , Power Off and Power ON For 5 Times LED flashes enter pairing modeNotes: 1. Zigbee 3.0 extender needs to be used with Zigbee Hub.2. This device uses the "Smart Light Switch -1 gang" as a ZigBee router to achieve the function of the ZigBee signal Repeater.3. If the signal needs to pass through multiple solid walls, it is advised to increase the number of repeaters according to the actual situation.Color: BlackMaterial: plasticPackage Contents:1 x USB Signal AmplifierOnly 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.