KY-037 4pin Voice Sound Detection Sensor Module Microphone Transmitter Smart Robot Car Suitable for Arduino DIY Kit

Features: 100% Brand new and high quality For sound detection module has two outputs: 1. AO, analog output, real-time output voltage signal of the microphone 2. DO, when the sound intensity reaches a certain threshold, the output high and low signal Module features: 1. There is a mounting screw hole 3mm 2. The use 5v DC power supply 3. With analog output 4. There are threshold level output flip 5. High sensitive microphone and high sensitivity. 6. A power indicator light 7. The comparator output is light Package included: 1 x   Sensitive Sound Microphone Sensor Detection Module For Arduino AVR PIC