LM393 Sound Detection Sensor Module - DC 4-6V Power Supply - High Sensitivity Audio Frequency Detector for Arduino, DIY Electronics & Security Alarm Systems - Perfect for Home Automation, Robotics Projects & Sound-Activated Devices

Product Description

With a signal output instruction. One single channel output. low level output signal.When there is sound output low, lights lit. Can be used for voice-activated lights, with light sensors make a sound and light , and voice control, voice detection occasions.