SNZB-01 Ewelink SNZB-01 Zigbee Wireless Switch is a mini and exquisite ZigBee wireless smart switch replying on Ewelink ZigBee Bridge that allows you to reach the of scene linkages between ZigBee devices (Ewelink BASICZBR3 DIY smart switch and S31 Lite zb smart plug) and Wi-Fi devices. Monitor indoor temperature and humidity. Sync the real-time temperature and humidity reading to APP. Can trigger Wi-Fi devices in smart scene. Add a camera to you know any emergency in your home. Low-battery notification. Quick and easy to install. color:White :plastic Package Contents: 1 x Wireless switch(SNZB-01) 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.