Everything is up to your responsibility.
<ol>
    <li>Dissasembly the microphone connect arduino to EPROM chip as on the picture <img src="data/SchemaW.png" alt="schema"></li>
    <li>Using the Arduino <a href="data/SennheiserReprogrammer.ino"> program </a> download data from EPROM, you can the paste serial output to the lower page input to decode microphone frequencies.</li>
    <li>On main page insert all frequencies you want to program, then put the output string to the arduino program and program the EPROM</li>
</ol>