Feature 1Wireless Transmission Technology: This switch adopts wireless transmission technology, which can realize wireless linkage with other smart devices. Users can remotely control the switch through smartphones or other devices to realize intelligent control. 2Low Power Consumption: This switch adopts low power consumption technology, with long battery life, and is easy to use, eliminating the cumbersome process of wiring and making installation simple and quick. 3Expandable: This switch is expandable, so users can add more devices and build a more complex smart home system to meet different needs. 4Excellent Alloy Material: This switch is made of excellent alloy material, which is sturdy and wear resistant, and not easy to be warped, as well as high temperature resistant and has a long service life. 5Dimming Control: This switch realizes dimming control of lights in home scenarios, which can be adjusted according to the weather as well as the level of brightness and darkness to provide a more comfortable lighting experience.Item Type: Smart Bulb Knob SwitchMaterial: Alloy Battery: CR2032 Button Battery 240mAh ( Shipped With Built In Battery )Operating Voltage: DC3VMaximum Current: 10mAWireless: for Zigbee3.0Wireless Transmission Distance: Open Range Approx. 30m/98.43ftWorking Environment: -5-45(23-113), 95%( Non Condensing). .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Knob Switch1 x Wall Suction Cup1 x Manual