diff --git a/stdlib/wave.pyi b/stdlib/wave.pyi
index 3ce1b88a6..94042dc22 100644
--- a/stdlib/wave.pyi
+++ b/stdlib/wave.pyi
@@ -1,12 +1,13 @@
 import sys
-from _typeshed import Self
+from _typeshed import ReadableBuffer, Self
 from typing import IO, Any, BinaryIO, NamedTuple, NoReturn, Union
+from typing_extensions import Literal
 
 _File = Union[str, IO[bytes]]
 
 class Error(Exception): ...
 
-WAVE_FORMAT_PCM: int
+WAVE_FORMAT_PCM: Literal[1]
 
 class _wave_params(NamedTuple):
     nchannels: int
@@ -57,9 +58,8 @@ class Wave_write:
     def getmark(self, id: Any) -> NoReturn: ...
     def getmarkers(self) -> None: ...
     def tell(self) -> int: ...
-    # should be any bytes-like object after 3.4, but we don't have a type for that
-    def writeframesraw(self, data: bytes) -> None: ...
-    def writeframes(self, data: bytes) -> None: ...
+    def writeframesraw(self, data: ReadableBuffer) -> None: ...
+    def writeframes(self, data: ReadableBuffer) -> None: ...
     def close(self) -> None: ...
 
 # Returns a Wave_read if mode is rb and Wave_write if mode is wb