diff --git a/.gitignore b/.gitignore
index 8ca53a7..15cd0bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ notebooks
 .idea
 .DS_Store
 *.zip
-__pycache__
\ No newline at end of file
+__pycache__
+*.dump
diff --git a/README.md b/README.md
index 664eb2a..42526eb 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,30 @@ Huami servers.
 3. Clone this repo:
 ```git clone https://github.com/argrento/huami-token.git```
 
+## Usage
+```
+usage: huami_token.py [-h] -m {amazfit,xiaomi} [-e EMAIL] [-p PASSWORD] [-b]
+                      [-g] [-a] [-n]
+
+Obtain Bluetooth Auth key from Amazfit servers and download AGPS data.
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -m {amazfit,xiaomi}, --method {amazfit,xiaomi}
+                        Login method
+  -e EMAIL, --email EMAIL
+                        Account e-mail address
+  -p PASSWORD, --password PASSWORD
+                        Account Password
+  -b, --bt_keys         Get bluetooth tokens of paired devices
+  -g, --gps             Download A-GPS files
+  -a, --all             Do everything: get bluetooth tokens, download A-GPS
+                        files
+  -n, --no_logout       Do not logout, keep active session and display app
+                        token and access token
+```
+
+
 ## Logging in with Amazfit account
 Run script with your cridentials: `python huami_token.py --method amazfit --email youemail@example.com --password your_password --bt_keys`.
 
diff --git a/huami_token.py b/huami_token.py
index af7a48d..2b75715 100644
--- a/huami_token.py
+++ b/huami_token.py
@@ -239,7 +239,7 @@ if __name__ == "__main__":
     console = Console()
     table = Table(show_header=True, header_style="bold", box=box.ASCII)
     table.add_column("MAC", style="dim", width=17, justify='center')
-    table.add_column("auth_key", width=36, justify='center')
+    table.add_column("auth_key", width=50, justify='center')
 
     device = HuamiAmazfit(method=args.method,
                           email=args.email,
diff --git a/urls.py b/urls.py
index 69cf426..8836b6d 100644
--- a/urls.py
+++ b/urls.py
@@ -6,6 +6,7 @@ URLS = {
     'login_amazfit': 'https://account.huami.com/v2/client/login',
     'devices': 'https://api-mifit-us2.huami.com/users/{user_id}/devices',
     'agps': 'https://api-mifit-us2.huami.com/apps/com.huami.midong/fileTypes/{pack_name}/files',
+    'data_short': 'https://api-mifit-us2.huami.com/users/{user_id}/deviceTypes/4/data',
     'logout': 'https://account-us2.huami.com/v1/client/logout'
 }
 
@@ -41,6 +42,11 @@ PAYLOADS = {
     'agps': {
         'apptoken': None
     },
+    'data_short': {
+        'apptoken': None,
+        'startDay': None,
+        'endDay': None
+    },
     'logout': {
         'login_token': None
     },