Features Sound and Light Control: Activates in dark environment for sound control and has light control function with the photoresistor for 24-hour sound control. Flexible Application: Suitable for small power appliances such as solar lights, small alarms, and small motors, providing versatile use. Sensitive Sound Sensing: Activates at 20 decibels within 1 meter, ensuring prompt response to sound stimuli. Convenient Installation: Small size and lightweight design make installation and carrying effortless, ideal for various settings. Multipack Inclusion: Comes with 5 pieces of the module, offering cost-effective and convenient multiple installations. Specification: Item Type: Sound Control Switch Module Product Material: Glass Fiber Model: S330 Input Voltage: DC 3V-30V (do not use dry batteries) Output Voltage: DC 3V-30V (how much voltage input is input, how much is the output voltage) Output Power: The output power of light (W) can not exceed the input voltage (V), and the current cannot exceed 1A. Activating Decibel: 20 Decibels (within 1 meter) TurNOn/Off Delay Time: Fixed 45 seconds. (not adjustable) Package List: Item Type: Sound Control Switch Module Product Material: Glass Fiber Model: S330 Input Voltage: DC 3V-30V (do not use dry batteries) Output Voltage: DC 3V-30V (how much voltage input is input, how much is the output voltage) Output Power: The output power of light (W) can not exceed the input voltage (V), and the current cannot exceed 1A. Activating Decibel: 20 Decibels (within 1 meter) TurNOn/Off Delay Time: Fixed 45 seconds. (not adjustable) Package List 5 x Sound Control Switch Module