Robert Boschgmbh

Ad Hermans

Martien Kas

Marc Smaak

Ruud De Wit

Marc Van Loon

Ko Van Bruinessen

Gerard Boersen

Rene Lurvink

The discussion unit () for use in a conference system is disclosed, which is adapted to be connected to at least one second discussion unit (). The discussion unit () comprises an essentially closed casing () and at least one exchangeable portion (). The at least one exchangeable portion () is removably mounted to the casing () and at least partially covers at least one outside part () of the casing (). The invention allows for an easy first installation of the exchangeable portion (). Nevertheless, after installation, the exchangeable portion () is difficult to remove by a user (preventing unintended removal or removal by vandalism or 'play instinct'), but allowing for an easy exchange of the exchangeable portion () by an installer and/or a service technician.

Discussion unit with removable rim

A microphone has at least one non-conductive component with at least one side covered by a metal layer which in turn is covered by a protective layer, and the microphone can be a component of a delegate unit of a conference system or a congress system.

EMI shielding for a microphone

Growing community of inventors

Chaam, Netherlands

Ad Hermans