diff --git a/tests/components/wemo/conftest.py b/tests/components/wemo/conftest.py
index 1316c37b62b..64bd89f4793 100644
--- a/tests/components/wemo/conftest.py
+++ b/tests/components/wemo/conftest.py
@@ -1,13 +1,15 @@
 """Fixtures for pywemo."""
 
+from collections.abc import Generator
 import contextlib
-from unittest.mock import create_autospec, patch
+from unittest.mock import MagicMock, create_autospec, patch
 
 import pytest
 import pywemo
 
 from homeassistant.components.wemo import CONF_DISCOVERY, CONF_STATIC
 from homeassistant.components.wemo.const import DOMAIN
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry as er
 from homeassistant.setup import async_setup_component
 
@@ -22,13 +24,13 @@ MOCK_INSIGHT_STATE_THRESHOLD_POWER = 8.0
 
 
 @pytest.fixture(name="pywemo_model")
-def pywemo_model_fixture():
+def pywemo_model_fixture() -> str:
     """Fixture containing a pywemo class name used by pywemo_device_fixture."""
     return "LightSwitch"
 
 
 @pytest.fixture(name="pywemo_registry", autouse=True)
-async def async_pywemo_registry_fixture():
+def async_pywemo_registry_fixture() -> Generator[MagicMock]:
     """Fixture for SubscriptionRegistry instances."""
     registry = create_autospec(pywemo.SubscriptionRegistry, instance=True)
 
@@ -52,7 +54,9 @@ def pywemo_discovery_responder_fixture():
 
 
 @contextlib.contextmanager
-def create_pywemo_device(pywemo_registry, pywemo_model):
+def create_pywemo_device(
+    pywemo_registry: MagicMock, pywemo_model: str
+) -> pywemo.WeMoDevice:
     """Create a WeMoDevice instance."""
     cls = getattr(pywemo, pywemo_model)
     device = create_autospec(cls, instance=True)
@@ -90,14 +94,18 @@ def create_pywemo_device(pywemo_registry, pywemo_model):
 
 
 @pytest.fixture(name="pywemo_device")
-def pywemo_device_fixture(pywemo_registry, pywemo_model):
+def pywemo_device_fixture(
+    pywemo_registry: MagicMock, pywemo_model: str
+) -> Generator[pywemo.WeMoDevice]:
     """Fixture for WeMoDevice instances."""
     with create_pywemo_device(pywemo_registry, pywemo_model) as pywemo_device:
         yield pywemo_device
 
 
 @pytest.fixture(name="pywemo_dli_device")
-def pywemo_dli_device_fixture(pywemo_registry, pywemo_model):
+def pywemo_dli_device_fixture(
+    pywemo_registry: MagicMock, pywemo_model: str
+) -> Generator[pywemo.WeMoDevice]:
     """Fixture for Digital Loggers emulated instances."""
     with create_pywemo_device(pywemo_registry, pywemo_model) as pywemo_dli_device:
         pywemo_dli_device.model_name = "DLI emulated Belkin Socket"
@@ -106,12 +114,14 @@ def pywemo_dli_device_fixture(pywemo_registry, pywemo_model):
 
 
 @pytest.fixture(name="wemo_entity_suffix")
-def wemo_entity_suffix_fixture():
+def wemo_entity_suffix_fixture() -> str:
     """Fixture to select a specific entity for wemo_entity."""
     return ""
 
 
-async def async_create_wemo_entity(hass, pywemo_device, wemo_entity_suffix):
+async def async_create_wemo_entity(
+    hass: HomeAssistant, pywemo_device: pywemo.WeMoDevice, wemo_entity_suffix: str
+) -> er.RegistryEntry | None:
     """Create a hass entity for a wemo device."""
     assert await async_setup_component(
         hass,
@@ -134,12 +144,16 @@ async def async_create_wemo_entity(hass, pywemo_device, wemo_entity_suffix):
 
 
 @pytest.fixture(name="wemo_entity")
-async def async_wemo_entity_fixture(hass, pywemo_device, wemo_entity_suffix):
+async def async_wemo_entity_fixture(
+    hass: HomeAssistant, pywemo_device: pywemo.WeMoDevice, wemo_entity_suffix: str
+) -> er.RegistryEntry | None:
     """Fixture for a Wemo entity in hass."""
     return await async_create_wemo_entity(hass, pywemo_device, wemo_entity_suffix)
 
 
 @pytest.fixture(name="wemo_dli_entity")
-async def async_wemo_dli_entity_fixture(hass, pywemo_dli_device, wemo_entity_suffix):
+async def async_wemo_dli_entity_fixture(
+    hass: HomeAssistant, pywemo_dli_device: pywemo.WeMoDevice, wemo_entity_suffix: str
+) -> er.RegistryEntry | None:
     """Fixture for a Wemo entity in hass."""
     return await async_create_wemo_entity(hass, pywemo_dli_device, wemo_entity_suffix)