Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay :
Amazon.com: MAX9814 Electret Microphone Amplifier Board Module MIC Auto Gain Max 40dB/50dB/60dB Frequency 2.7V-5.5V with Pins for Arduino : Electronics
Amazon.com: Beaster Voice Recognition Module with Microphone Dupont Jumper Wire Speech Recognition Voice Control Board for Arduino : Electronics
Amazon.com: Anmbest 5PCS RED Microphone Sensor AVR PIC High Sensitivity Sound Detection Module LM393 Dual Differential Comparators Output for Arduino : Industrial & Scientific
Amazon.com: DEVMO 3PCS Mic Microphone Sensor High Sensitivity Sound Detection Module Compatible with A-rduino PIC AVR : Electronics
5pcs High Sensitive Microphone Sound Sensor Detection Module for Arduino Board AVR PIC 5V DC Power Supply Analog Output: Amazon.com: Industrial & Scientific
KY-037 High Sensitivity Sound Microphone Sensor Detection Module for Arduino AVR PIC: Amazon.com: Industrial & Scientific
Amazon.com: Cylewet 10Pcs Cylindrical Electret Condenser Microphone Pickup with 2 Pins 9×7mm for Arduino (Pack of 10) CYT1013 : Electronics
Amazon.com: GY-MAX4466 Electret Microphone Amplifier Sensor Sound Module with Adjustable Gain Control for Arduino (Pack of 2) : Electronics
Amazon.com: Rakstore Speak Recognition Voice Recognition Module V3 Compatible with for Arduino Support 80 Kinds of Voice DC 4.4-5.5 V High Accuracy : Electronics
Amazon.com: Tolako MIC Microphone Sound Sensor Module with 3pin Dupont line for Arduino UNO&MEGA Raspberry pi AVR STM32 : Electronics