diff --git a/src/HAPConstants.h b/src/HAPConstants.h
index cfe8ff7..9fa680c 100644
--- a/src/HAPConstants.h
+++ b/src/HAPConstants.h
@@ -130,6 +130,7 @@ struct HapCharList {
   HAPCHAR( Manufacturer, 20, PR );
   HAPCHAR( Model, 21, PR );
   HAPCHAR( MotionDetected, 22, PR+EV );
+  HAPCHAR( Mute, 11A, PW+PR+EV );
   HAPCHAR( Name, 23, PR );
   HAPCHAR( NitrogenDioxideDensity, C4, PR+EV );
   HAPCHAR( ObstructionDetected, 24, PR+EV );
@@ -149,6 +150,9 @@ struct HapCharList {
   HAPCHAR( RotationDirection, 28, PR+PW+EV );
   HAPCHAR( RotationSpeed, 29, PR+PW+EV );
   HAPCHAR( Saturation , 2F, PR+PW+EV );  
+  HAPCHAR( SecuritySystemAlarmType , 8E, PR+EV );  
+  HAPCHAR( SecuritySystemCurrentState , 66, PR+EV );  
+  HAPCHAR( SecuritySystemTargetState , 67, PW+PR+EV );  
   HAPCHAR( SerialNumber, 30, PR );
   HAPCHAR( ServiceLabelIndex, CB, PR );
   HAPCHAR( ServiceLabelNamespace, CD, PR );
diff --git a/src/Services.h b/src/Services.h
index 4a78fca..c6466a9 100644
--- a/src/Services.h
+++ b/src/Services.h
@@ -209,6 +209,18 @@ namespace Service {
     OPT(StatusLowBattery);          
   }};
 
+  struct LockMechanism : SpanService { LockMechanism() : SpanService{"45","LockMechanism"}{
+    REQ(LockCurrentState);
+    REQ(LockTargetState);
+    OPT(Name);
+  }};
+
+  struct Microphone : SpanService { Microphone() : SpanService{"112","Microphone"}{
+    REQ(Mute);
+    OPT(Name);
+    OPT(Volume);
+  }};
+
   struct MotionSensor : SpanService { MotionSensor() : SpanService{"85","MotionSensor"}{
     REQ(MotionDetected);
     OPT(Name);
@@ -233,7 +245,16 @@ namespace Service {
     OPT(Name);
   }};
 
-  struct ServiceLabel : SpanService { ServiceLabel() : SpanService{"47","ServiceLabel"}{
+  struct SecuritySystem : SpanService { SecuritySystem() : SpanService{"7E","SecuritySystem"}{
+    REQ(SecuritySystemCurrentState);
+    REQ(SecuritySystemTargetState);
+    OPT(Name);
+    OPT(SecuritySystemAlarmType);
+    OPT(StatusFault);
+    OPT(StatusTampered);
+  }};  
+
+  struct ServiceLabel : SpanService { ServiceLabel() : SpanService{"CC","ServiceLabel"}{
     REQ(ServiceLabelNamespace);
   }};