diff --git a/obsws_python/__init__.py b/obsws_python/__init__.py
index 6ab08c5..d54af06 100644
--- a/obsws_python/__init__.py
+++ b/obsws_python/__init__.py
@@ -1,4 +1,5 @@
+from .enum import Subs
 from .events import EventClient
 from .reqs import ReqClient
 
-__ALL__ = ["ReqClient", "EventClient"]
+__ALL__ = ["ReqClient", "EventClient", "Subs"]
diff --git a/obsws_python/enum.py b/obsws_python/enum.py
new file mode 100644
index 0000000..b3c4b7e
--- /dev/null
+++ b/obsws_python/enum.py
@@ -0,0 +1,43 @@
+from enum import IntFlag
+
+
+class Subs(IntFlag):
+    GENERAL = 1 << 0
+    CONFIG = 1 << 1
+    SCENES = 1 << 2
+    INPUTS = 1 << 3
+    TRANSITIONS = 1 << 4
+    FILTERS = 1 << 5
+    OUTPUTS = 1 << 6
+    SCENEITEMS = 1 << 7
+    MEDIAINPUTS = 1 << 8
+    VENDORS = 1 << 9
+    UI = 1 << 10
+
+    LOW_VOLUME = (
+        GENERAL
+        | CONFIG
+        | SCENES
+        | INPUTS
+        | TRANSITIONS
+        | FILTERS
+        | OUTPUTS
+        | SCENEITEMS
+        | MEDIAINPUTS
+        | VENDORS
+        | UI
+    )
+
+    INPUTVOLUMEMETERS = 1 << 16
+    INPUTACTIVESTATECHANGED = 1 << 17
+    INPUTSHOWSTATECHANGED = 1 << 18
+    SCENEITEMTRANSFORMCHANGED = 1 << 19
+
+    HIGH_VOLUME = (
+        INPUTVOLUMEMETERS
+        | INPUTACTIVESTATECHANGED
+        | INPUTSHOWSTATECHANGED
+        | SCENEITEMTRANSFORMCHANGED
+    )
+
+    ALL = LOW_VOLUME | HIGH_VOLUME
diff --git a/obsws_python/events.py b/obsws_python/events.py
index a2f07bc..0771e26 100644
--- a/obsws_python/events.py
+++ b/obsws_python/events.py
@@ -1,11 +1,11 @@
 import json
 import logging
 import time
-from enum import IntEnum
 from threading import Thread
 
 from .baseclient import ObsClient
 from .callback import Callback
+from .enum import Subs
 
 """
 A class to interact with obs-websocket events
@@ -13,33 +13,13 @@ defined in official github repo
 https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#events
 """
 
-Subs = IntEnum(
-    "Subs",
-    "general config scenes inputs transitions filters outputs sceneitems mediainputs vendors ui",
-    start=0,
-)
-
 
 class EventClient:
     logger = logging.getLogger("events.eventclient")
     DELAY = 0.001
 
     def __init__(self, **kwargs):
-        defaultkwargs = {
-            "subs": (
-                (1 << Subs.general)
-                | (1 << Subs.config)
-                | (1 << Subs.scenes)
-                | (1 << Subs.inputs)
-                | (1 << Subs.transitions)
-                | (1 << Subs.filters)
-                | (1 << Subs.outputs)
-                | (1 << Subs.sceneitems)
-                | (1 << Subs.mediainputs)
-                | (1 << Subs.vendors)
-                | (1 << Subs.ui)
-            )
-        }
+        defaultkwargs = {"subs": Subs.LOW_VOLUME}
         kwargs = defaultkwargs | kwargs
         self.base_client = ObsClient(**kwargs)
         if self.base_client.authenticate():