diff --git a/src/device/controller.ts b/src/device/controller.ts
index 3c5ec76..b3915a9 100644
--- a/src/device/controller.ts
+++ b/src/device/controller.ts
@@ -169,6 +169,7 @@ import { MicrosoftHidClient } from "@openmouse/protocol/drivers/microsoft/hid";
 import { DareuHidClient } from "@openmouse/protocol/drivers/dareu/hid";
 import { IncottHidClient } from "@openmouse/protocol/drivers/incott/hid";
 import { BytechHidClient } from "@openmouse/protocol/drivers/bytech/hid";
+import { RapooHidClient } from "@openmouse/protocol/drivers/rapoo/hid";
 import { parsePreviewMode, previewsEnabled, type PreviewMode } from "../preview-modes";
 import { sleepLabel } from "./options";
 import { traitsFor } from "./traits";
@@ -243,7 +244,12 @@ function activeAs<T>(...classes: ClientClass<T>[]): T | null {
 
 const DM_CLASSES = [WLMouseHidClient, LamzuHidClient, LamzuAtlantisHidClient, AtkHidClient, AtkBitmouseHidClient, NinjutsoHidClient] as const;
 const RAZER_CLASSES = [RazerHidClient, RazerViperMiniHidClient, RazerViperHidClient, RazerCobraHidClient] as const;
-const NEEDS_OPEN = [LamzuAtlantisHidClient, TeevolutionHidClient, VgnF2HidClient, KeychronNapeHidClient, KeychronM6HidClient, WLMouseBeastX4kHidClient, ModdoHidClient, ZaunkoenigHidClient, CorsairHidClient, FantechHidClient, WallhackMouseHidClient, WallhackKeyboardHidClient, GloriousHidClient, GloriousClassicHidClient, MchoseHidClient, MchoseDockHidClient, MchoseA5ProMaxHidClient, MchoseV3HidClient, MicrosoftHidClient, DareuHidClient, IncottHidClient, BytechHidClient] as const;
+// Rapoo's VT9 Pro listens on its own vendor collection and answers reads
+// through GET_REPORT(Input), which in the browser means OpenMouse Bridge:
+// opening it on connect is what makes the register walk in readStatus()
+// possible, and the driver reports the battery on its own when Bridge is
+// absent rather than failing.
+const NEEDS_OPEN = [LamzuAtlantisHidClient, TeevolutionHidClient, VgnF2HidClient, KeychronNapeHidClient, KeychronM6HidClient, WLMouseBeastX4kHidClient, ModdoHidClient, ZaunkoenigHidClient, CorsairHidClient, FantechHidClient, WallhackMouseHidClient, WallhackKeyboardHidClient, GloriousHidClient, GloriousClassicHidClient, MchoseHidClient, MchoseDockHidClient, MchoseA5ProMaxHidClient, MchoseV3HidClient, MicrosoftHidClient, DareuHidClient, IncottHidClient, BytechHidClient, RapooHidClient] as const;
 const PULSAR_CLASSES = [PulsarHidClient, PulsarProHidClient, PulsarXs1HidClient] as const;
 
 const logitechClient = (): LogitechHidppClient | null => activeAs(LogitechHidppClient);