diff --git a/src/manager.rs b/src/manager.rs
index a51240a..2e2a74c 100644
--- a/src/manager.rs
+++ b/src/manager.rs
@@ -271,10 +271,34 @@ impl SteamOSManager {
         set_gpu_clocks(clocks).await.is_ok()
     }
 
+    #[zbus(property)]
+    async fn manual_gpu_clock_min(&self) -> u32 {
+        // TODO: Can this be queried from somewhere?
+        200
+    }
+
+    #[zbus(property)]
+    async fn manual_gpu_clock_max(&self) -> u32 {
+        // TODO: Can this be queried from somewhere?
+        1600
+    }
+
     async fn set_tdp_limit(&self, limit: i32) -> bool {
         set_tdp_limit(limit).await.is_ok()
     }
 
+    #[zbus(property)]
+    async fn tdp_limit_min(&self) -> u32 {
+        // TODO: Can this be queried from somewhere?
+        3
+    }
+
+    #[zbus(property)]
+    async fn tdp_limit_max(&self) -> u32 {
+        // TODO: Can this be queried from somewhere?
+        15
+    }
+
     #[zbus(property)]
     async fn wifi_debug_mode_state(&self) -> u32 {
         // Get the wifi debug mode