Item Type: Wireless Radio Frequency Remote Control SwitchMaterial: Polychlorinated BiphenylBuilt-in Button Battery in the Remote Control: 80mAhNumber of Button Battery: 2Voltage: Input = Output 3.5-12VRemote Control Voltage: 6VLength: 210mmConnector Size: Male and Female 5.5x2.1mmWorking Mode: MOS Tube SCR Silent Non-Contact (Control the on and off of the Positive VCC+)Frequency: 433MHzStandby & Working Current: 6mALoad Capacity: 3ACode Pairing Method: The receiver has a learning function, can be equipped with a remote control, and can be set for multiple sets of universal.Package List1 x Receiver2 x Transmitter1. Do not operate the control buttons quickly and frequently, because the controller is controlled by a microprocessor, and each operating state will respond within 1 second.2. If you find that the LED light is dimmed or the distance becomes shorter, please replace the battery.3. The receiving antenna must be soft, and the length cannot be too long or too short, otherwise it will affect the transmission distance. Please try to straighten the antenna as far as possible, and do not get close to metal objects or any magnetic objects.1The switch has superheterodyne receiving circuit and better antiinterference. 2With an ultrasmall size, the switch is suitable for all kinds of narrow spaces. 3It has strong compatibility and can support various 433M fixed code and learning code remote control. 4It is easy to install and use, stable and had reliable performance with remote control. 5With its material of polychlorinated biphenyl, it is durable and has a long service life.