diff --git a/bumble/device.py b/bumble/device.py
index 6049e0f..d393f6a 100644
--- a/bumble/device.py
+++ b/bumble/device.py
@@ -1946,9 +1946,7 @@ class Device(CompositeEventEmitter):
 
     @property
     def supports_le_extended_advertising(self):
-        return self.supports_le_features(
-            LeFeatureMask.LE_EXTENDED_ADVERTISING
-        )
+        return self.supports_le_features(LeFeatureMask.LE_EXTENDED_ADVERTISING)
 
     async def start_advertising(
         self,
diff --git a/examples/run_extended_advertiser_2.py b/examples/run_extended_advertiser_2.py
index 6e6f572..db4d619 100644
--- a/examples/run_extended_advertiser_2.py
+++ b/examples/run_extended_advertiser_2.py
@@ -42,7 +42,7 @@ async def main() -> None:
         await device.power_on()
 
         if not device.supports_le_extended_advertising:
-            print("Device does not support extended adverising")
+            print("Device does not support extended advertising")
             return
 
         print("Max advertising sets:", device.host.number_of_supported_advertising_sets)