Title: Aqara E1 Smart Wireless Switch Wall Switch Zigbee Intelligent Dual Control One Key Control Single-click Mode 2 Years Long Battery Life Features: Easy Intelligent Dual Control. There is no need to move around to switch the lights on and off. With the wall switch, you can achieve intelligent dual control and turn off all the lights in the home with one key, even from bed. Dual Platform Intelligent Linkage. Access both HomeKit and MIoT platforms and connect with compatible smart devices at home for more convenient and intelligent automation. One Key Control. Before going out, simply press the wireless switch E1 to turn off the air conditioner, whole house lighting, and living room fan. 2 Years Long Battery Life with low battery reminder. Lower Power Consumption and Higher Stability. Specification: Product Name: Wireless Switch E1 (wall-mounted single-button version), Wireless Switch E1 (wall-mounted double-button version) Product Model: WXKG16LM, WXKG17LM Product Size: 86 x 86 x 15mm Wireless Connection: Zigbee Battery Specification: CR2032 Operating Temperature: 0℃~40℃ Operating Humidity: 0%–95% RH, no condensation Compliance Standard: GB4943.1-2011 Package List: 1 x Wireless Switch E1 1 x Manual Note: • This switch must be used with Xiaomi Gateway 2 or Aqara Gateway to enable smart remote control functionality for other Xiaomi smart devices. • Please download the app by scanning the QR code in the user manual (available on the App Store or Google Play). • The wall switch supports wired connections and can control any bulb through wiring. The wireless switch cannot be wired and only controls Xiaomi smart bulbs or lights via Zigbee.