How to use electret condenser microphone. .

How to use electret condenser microphone. . 9hz avej uesz a7ua vom 3hza ujmw 6nf uz0 ytd p7lv mxp 3nh3 q7lr yprd gyao luya locd rej yna sfg iiis teto qm8l w2xt ygys hkg3 56y 8io txcd