diff --git a/eufy_robovac/demo.py b/eufy_robovac/demo.py
index 0caec0a..9514841 100644
--- a/eufy_robovac/demo.py
+++ b/eufy_robovac/demo.py
@@ -30,20 +30,16 @@ async def cleaning_started_callback(message, device):
     print("Cleaning started.")
 
 
-async def go_home_callback(message, device):
-    print("Device on its way home.")
-
-
 async def async_main(device_id, local_key, ip, *args, **kwargs):
     r = Robovac(device_id, local_key, ip, *args, **kwargs)
     await r.async_connect(connected_callback)
-    await asyncio.sleep(5)
+    await asyncio.sleep(1)
     print("Starting cleaning...")
     await r.async_start_cleaning(cleaning_started_callback)
-    await asyncio.sleep(30)
-    print("Sending home...")
-    await r.async_go_home(go_home_callback)
-    await asyncio.sleep(10)
+    await asyncio.sleep(5)
+    print("Pausing...")
+    r.play_pause = False
+    await asyncio.sleep(1)
     print("Disconnecting...")
     await r.async_disconnect()
 
diff --git a/eufy_robovac/property.py b/eufy_robovac/property.py
new file mode 100644
index 0000000..26aff04
--- /dev/null
+++ b/eufy_robovac/property.py
@@ -0,0 +1,45 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2019 Richard Mitchell
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import enum
+
+
+class StringEnum(enum.Enum):
+
+    def __str__(self):
+        return self.value
+
+
+class DeviceProperty:
+
+    def __init__(self, key, type_cast=None, read_only=False):
+        self.key = key
+        self.type_cast = type_cast
+        self.read_only = read_only
+
+    def __get__(self, instance):
+        value = instance.state.get(self.key)
+        if value is not None and type_cast is not None:
+            value = self.type_cast(value)
+        return value
+
+    def __set__(self, instance, value):
+        if self.read_only:
+            raise AttributeError("can't set attribute")
+
+        if not isinstance(value, (bool, int, float, str, type(None))):
+            value = str(value)
+        instance.set({self.key: value})