Lok Sabha Speaker Om Birla on Monday said the presiding officers do not have any switch or remote control to turn off the microphones of members raising issues in the House.

Birla took strong objection to members casting aspersions on the Chair by alleging that when they rise to speak in the House, their microphones are turned off by the presiding officers.

The allegation of the Chair turning the microphone off was a matter of utmost concern, the Speaker said, adding that he wanted the House to deliberate on the issue.