Add missing supported features to Z-Wave.Me siren (#87141)

homeassistant/components/zwave_me/siren.py

@@ -1,7 +1,7 @@
 """Representation of a sirenBinary."""
 from typing import Any
 
-from homeassistant.components.siren import SirenEntity
+from homeassistant.components.siren import SirenEntity, SirenEntityFeature
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
@@ -41,6 +41,13 @@ def add_new_device(new_device):
 class ZWaveMeSiren(ZWaveMeEntity, SirenEntity):
     """Representation of a ZWaveMe siren."""
 
+    def __init__(self, controller, device):
+        """Initialize the device."""
+        super().__init__(controller, device)
+        self._attr_supported_features = (
+            SirenEntityFeature.TURN_ON | SirenEntityFeature.TURN_OFF
+        )
+
     @property
     def is_on(self) -> bool:
         """Return the state of the siren."""