diff --git a/custom_components/integration_blueprint/binary_sensor.py b/custom_components/integration_blueprint/binary_sensor.py
index a3afa01..c765d65 100644
--- a/custom_components/integration_blueprint/binary_sensor.py
+++ b/custom_components/integration_blueprint/binary_sensor.py
@@ -44,6 +44,6 @@ def __init__(
         self.entity_description = entity_description
 
     @property
-    def is_on(self):
+    def is_on(self) -> bool:
         """Return true if the binary_sensor is on."""
         return self.coordinator.data.get("title", "") == "foo"
diff --git a/custom_components/integration_blueprint/entity.py b/custom_components/integration_blueprint/entity.py
index 06578ca..94bbc1e 100644
--- a/custom_components/integration_blueprint/entity.py
+++ b/custom_components/integration_blueprint/entity.py
@@ -1,6 +1,7 @@
 """BlueprintEntity class"""
 from __future__ import annotations
 
+from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import ATTRIBUTION, DOMAIN, NAME, VERSION
@@ -16,9 +17,9 @@ def __init__(self, coordinator: BlueprintDataUpdateCoordinator) -> None:
         """Initialize."""
         super().__init__(coordinator)
         self._attr_unique_id = coordinator.config_entry.entry_id
-        self._attr_device_info = {
-            "identifiers": {(DOMAIN, self.unique_id)},
-            "name": NAME,
-            "model": VERSION,
-            "manufacturer": NAME,
-        }
+        self._attr_device_info = DeviceInfo(
+            identifiers={(DOMAIN, self.unique_id)},
+            name=NAME,
+            model=VERSION,
+            manufacturer=NAME,
+        )
diff --git a/custom_components/integration_blueprint/sensor.py b/custom_components/integration_blueprint/sensor.py
index 970f3a8..8eb2ef6 100644
--- a/custom_components/integration_blueprint/sensor.py
+++ b/custom_components/integration_blueprint/sensor.py
@@ -40,6 +40,6 @@ def __init__(
         self.entity_description = entity_description
 
     @property
-    def native_value(self):
+    def native_value(self) -> str:
         """Return the native value of the sensor."""
         return self.coordinator.data.get("body")
diff --git a/custom_components/integration_blueprint/switch.py b/custom_components/integration_blueprint/switch.py
index c853af7..286ea9b 100644
--- a/custom_components/integration_blueprint/switch.py
+++ b/custom_components/integration_blueprint/switch.py
@@ -40,16 +40,16 @@ def __init__(
         self.entity_description = entity_description
 
     @property
-    def is_on(self):
+    def is_on(self) -> bool:
         """Return true if the switch is on."""
         return self.coordinator.data.get("title", "") == "foo"
 
-    async def async_turn_on(self, **kwargs: any):  # pylint: disable=unused-argument
+    async def async_turn_on(self, **_: any) -> None:
         """Turn on the switch."""
         await self.coordinator.api.async_set_title("bar")
         await self.coordinator.async_request_refresh()
 
-    async def async_turn_off(self, **kwargs: any):  # pylint: disable=unused-argument
+    async def async_turn_off(self, **_: any) -> None:
         """Turn off the switch."""
         await self.coordinator.api.async_set_title("foo")
         await self.coordinator.async_request_refresh()