The term crystal microphone is identified in base64 scheme by the sequence Y3J5c3RhbCBtaWNyb3Bob25l, while the MD5 signature is equal to 09e2ef9f735a76020c1b080bd54f231a. The ASCII encoding of crystal microphone in hexadecimal notation is 6372797374616c206d6963726f70686f6e65.