57     void errorCallback(int aError);

    57     void errorCallback(int aError);

    58     //from MIRHeadsetObserverInterface

    58     //from MIRHeadsetObserverInterface

    59     void headsetIsConnected();

    59     void headsetIsConnected();

    60     void headsetIsDisconnected();

    60     void headsetIsDisconnected();

    61     

    61     

    66 private:

    62 private:

    67     

    63     

    68     IRQSystemEventHandler * const q_ptr; 

    64     IRQSystemEventHandler * const q_ptr; 

    69     bool                          mAlarmOn;

    65     bool                          mAlarmOn;

    70     qint64                        mDefaultLevel;   

    66     qint64                        mDefaultLevel;