The handheld microphone is electronically monitored compliant to VDE 0828/IEC 50849. Measured values of the microphone cap, the entire signal path and the press-to-talk bar are detected and analysed. 
The direct connection with VARES is made by a 4-pin shielded cable. The handy, coloured housing with its lateral press-to-talk bar is optimized for its special purposes.