diff --git a/video/__init__.py b/video/__init__.py
index b89740d..435cda2 100644
--- a/video/__init__.py
+++ b/video/__init__.py
@@ -1,6 +1,7 @@
 from exceptions import *
 from bilibili_api import video, sync, HEADERS
 import httpx
+import os
 
 
 class Video:
@@ -54,14 +55,13 @@ class Video:
             )
         self.url = streams[1].url
 
-    def download_video(self):
+    def download(self, file: int | str | bytes | os.PathLike):
         with httpx.stream("GET", self.url, headers=HEADERS) as r:
             self.length = int(r.headers["content-length"])
             self.received_bytes = 0
-            with open("demo.m4a", "wb") as f:
+            with open(file, "wb") as f:
                 for chunk in r.iter_bytes(1024):
                     if not chunk:
                         break
                     self.received_bytes += len(chunk)
                     f.write(chunk)
-                    print(f"downloaded {int(self.received_bytes / self.length * 100)}%")