diff --git a/README.md b/README.md
index cac803a..53e6b33 100644
--- a/README.md
+++ b/README.md
@@ -18,17 +18,30 @@ Should be a very simple **server** implementation of what is required in Max's s
 Example Hue Light:
 ```
 [HueLight]
-    - implementes [LightDevice]
+    - implementes [LightEntity]
     - uses [HueBridge]
 ```
 
 Example with ZigBee2Mqtt Temperature and Matrix Clock Temperature:
 ```
 [Z2mClimate]
-    - implements [ClimateDevice]
+    - implements [ClimateEntity]
     - uses [Z2mBridge]
     
 [MatrixClock]
-    - implements [ClimateDevice]
+    - implements [ClimateEntity]
     - uses no bridge, works on a per-device connection
 ```
+
+### Device types
+
+G: Get
+S: Set
+
+- Hue [GS]
+- Brightness [GS]
+- Saturation [GS]
+- Temperature [G]
+- Humidity [G]
+- Message [S]
+- Contact [G]
diff --git a/src/mash/bridges/matrixclock.py b/src/mash/bridges/matrixclock.py
deleted file mode 100644
index e69de29..0000000
diff --git a/src/mash/entities/matrixclock.py b/src/mash/entities/matrixclock.py
new file mode 100644
index 0000000..8b73b7f
--- /dev/null
+++ b/src/mash/entities/matrixclock.py
@@ -0,0 +1,8 @@
+from mash.entities.entity import Entity
+
+
+class MatrixClockEntity(Entity):
+    def __init__(self, *, id: str, name: str, room: str, device_type: str, groups: list[str] = ...) -> None:
+        super().__init__(id=id, name=name, room=room, device_type=device_type, groups=groups)
+
+