diff --git a/pyhon/appliance.py b/pyhon/appliance.py
index 996c463..4a2d07c 100644
--- a/pyhon/appliance.py
+++ b/pyhon/appliance.py
@@ -277,7 +277,12 @@ class HonAppliance:
                 _LOGGER.info("Can't set %s - %s", key, error)
                 continue
 
-    def sync_command(self, main: str, target: Optional[List[str] | str] = None) -> None:
+    def sync_command(
+        self,
+        main: str,
+        target: Optional[List[str] | str] = None,
+        to_sync: Optional[List[str] | bool] = None,
+    ) -> None:
         base: Optional[HonCommand] = self.commands.get(main)
         if not base:
             return
@@ -287,7 +292,12 @@ class HonAppliance:
 
             for name, target_param in data.parameters.items():
                 if not (base_param := base.parameters.get(name)):
-                    return
+                    continue
+                if to_sync and (
+                    (isinstance(to_sync, list) and name not in to_sync)
+                    or not base_param.mandatory
+                ):
+                    continue
                 self.sync_parameter(base_param, target_param)
 
     def sync_parameter(self, main: Parameter, target: Parameter) -> None:
diff --git a/pyhon/appliances/wh.py b/pyhon/appliances/wh.py
index 4aa1a3c..7e92ca8 100644
--- a/pyhon/appliances/wh.py
+++ b/pyhon/appliances/wh.py
@@ -1,11 +1,16 @@
 from typing import Any, Dict
 
 from pyhon.appliances.base import ApplianceBase
+from pyhon.parameter.base import HonParameter
 
 
 class Appliance(ApplianceBase):
     def attributes(self, data: Dict[str, Any]) -> Dict[str, Any]:
         data = super().attributes(data)
-        data["active"] = data["parameters"]["onOffStatus"] == "1"
-
+        parameter = data["parameters"]["onOffStatus"]
+        is_class = isinstance(parameter, HonParameter)
+        data["active"] = parameter.value == 1 if is_class else parameter == 1
         return data
+
+    def settings(self, settings: Dict[str, Any]) -> Dict[str, Any]:
+        return settings
diff --git a/pyhon/commands.py b/pyhon/commands.py
index 68df63a..8c0275a 100644
--- a/pyhon/commands.py
+++ b/pyhon/commands.py
@@ -132,7 +132,7 @@ class HonCommand:
     async def send_specific(self, param_names: List[str]) -> bool:
         params: Dict[str, str | float] = {}
         for key, parameter in self._parameters.items():
-            if key in param_names:
+            if key in param_names or parameter.mandatory:
                 params[key] = parameter.value
         return await self.send_parameters(params)