diff --git a/src/device/interfaces/get.device.interface.ts b/src/device/interfaces/get.device.interface.ts
index e6f1361..d7c856b 100644
--- a/src/device/interfaces/get.device.interface.ts
+++ b/src/device/interfaces/get.device.interface.ts
@@ -1,5 +1,7 @@
 export class GetDeviceDetailsInterface {
-  result: object;
+  result: {
+    productId: string;
+  };
   success: boolean;
   msg: string;
 }
@@ -42,3 +44,21 @@ export class GetDeviceDetailsFunctionsStatusInterface {
   success: boolean;
   msg: string;
 }
+export interface GetProductInterface {
+  productType: string;
+  productId: string;
+}
+
+export interface DeviceInstructionResponse {
+  success: boolean;
+  result: {
+    productId: string;
+    productType: string;
+    functions: {
+      code: string;
+      values: any[];
+      dataType: string;
+    }[];
+  };
+  msg: string;
+}