diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f83c577f4..aee21f704d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,7 +30,10 @@ These changes are available on the `master` branch, but have not yet been releas
 - Added new `application_auto_moderation_rule_create_badge` to `ApplicationFlags`.
   ([#1992](https://github.com/Pycord-Development/pycord/pull/1992))
 - Added `custom_message` to AutoModActionMetadata.
-- ([#2029](https://github.com/Pycord-Development/pycord/pull/2029))
+  ([#2029](https://github.com/Pycord-Development/pycord/pull/2029))
+- Added support for
+  [voice messages](https://github.com/discord/discord-api-docs/pull/6082).
+  ([#2016](https://github.com/Pycord-Development/pycord/pull/2016))
 
 ### Changed
 
diff --git a/discord/flags.py b/discord/flags.py
index ae5d74da82..28f78284c2 100644
--- a/discord/flags.py
+++ b/discord/flags.py
@@ -404,6 +404,14 @@ def suppress_notifications(self):
 
         return 4096
 
+    @flag_value
+    def is_voice_message(self):
+        """:class:`bool`: Returns ``True`` if this message is a voice message.
+
+        .. versionadded:: 2.5
+        """
+        return 8192
+
 
 @fill_with_flags()
 class PublicUserFlags(BaseFlags):
diff --git a/discord/message.py b/discord/message.py
index 77193b2920..c74f40c288 100644
--- a/discord/message.py
+++ b/discord/message.py
@@ -159,7 +159,7 @@ class Attachment(Hashable):
         case of images. When the message is deleted, this URL might be valid for a few
         minutes or not valid at all.
     content_type: Optional[:class:`str`]
-        The attachment's `media type <https://en.wikipedia.org/wiki/Media_type>`_
+        The attachment's `media type <https://en.wikipedia.org/wiki/Media_type>`_.
     ephemeral: :class:`bool`
         Whether the attachment is ephemeral or not.
 
@@ -169,6 +169,16 @@ class Attachment(Hashable):
         The attachment's description.
 
         .. versionadded:: 2.0
+
+    duration_secs: Optional[:class:`float`]
+        The duration of the audio file (currently for voice messages).
+
+        .. versionadded:: 2.5
+
+    waveform: Optional[:class:`str`]
+        The base64 encoded bytearray representing a sampled waveform (currently for voice messages).
+
+        .. versionadded:: 2.5
     """
 
     __slots__ = (
@@ -183,6 +193,8 @@ class Attachment(Hashable):
         "content_type",
         "ephemeral",
         "description",
+        "duration_secs",
+        "waveform",
     )
 
     def __init__(self, *, data: AttachmentPayload, state: ConnectionState):
@@ -197,6 +209,8 @@ def __init__(self, *, data: AttachmentPayload, state: ConnectionState):
         self.content_type: str | None = data.get("content_type")
         self.ephemeral: bool = data.get("ephemeral", False)
         self.description: str | None = data.get("description")
+        self.duration_secs: float | None = data.get("duration_secs")
+        self.waveform: str | None = data.get("waveform")
 
     def is_spoiler(self) -> bool:
         """Whether this attachment contains a spoiler."""
diff --git a/discord/permissions.py b/discord/permissions.py
index 43dc6f2f7d..e94e6c2116 100644
--- a/discord/permissions.py
+++ b/discord/permissions.py
@@ -610,6 +610,14 @@ def moderate_members(self) -> int:
         """
         return 1 << 40
 
+    @flag_value
+    def send_voice_messages(self) -> int:
+        """:class:`bool`: Returns ``True`` if a member can send voice messages.
+
+        .. versionadded:: 2.5
+        """
+        return 1 << 46
+
 
 PO = TypeVar("PO", bound="PermissionOverwrite")
 
@@ -727,6 +735,7 @@ class PermissionOverwrite:
         use_external_stickers: bool | None
         start_embedded_activities: bool | None
         moderate_members: bool | None
+        send_voice_messages: bool | None
 
     def __init__(self, **kwargs: bool | None):
         self._values: dict[str, bool | None] = {}
diff --git a/discord/types/message.py b/discord/types/message.py
index 4d6d295d09..b141531e9a 100644
--- a/discord/types/message.py
+++ b/discord/types/message.py
@@ -66,6 +66,8 @@ class Attachment(TypedDict):
     size: int
     url: str
     proxy_url: str
+    duration_secs: NotRequired[float]
+    waveform: NotRequired[str]
 
 
 MessageActivityType = Literal[1, 2, 3, 5]