Sound Microphone Sensor Module High Sensitivity Sensor Module Signal Output Indication DC 4-6V LM393 for Voice Controlled Lights. Feature: 1. High-Quality Components: Equipped with a LM393 main chip and electret condenser microphone, ensuring stable and reliable performance. 2. Wide Compatibility: Designed to operate at DC 4-6V, compatible with a wide range of devices and applications. 3. Easy Signal Detection: Comes with a signal output indicator, which detects low-level signals and activates the signal light when sound is detected. 4. Versatile Functionality: Features a single-channel signal output that produces effective low-level signals, making it good for use in sound-controlled lighting, voice control, and sound detection applications. 5. Convenient Output Switch: The circuit board features an output switch, providing convenient control over the device's signal output. Specification: Origin: Mainland China, Product weight: 5g, Product size: About 32x17x8mm/1.25x0.66x0.31inch. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring deviation due to manual measurement.