diff --git a/index.html b/index.html
index 4e5e039..6f9d045 100644
--- a/index.html
+++ b/index.html
@@ -22,11 +22,13 @@
 <div class="col-md-4">
     <label name="store" for="store_selector">目标商店</label>
     <select name="store_list" id="store_selector">
+        <option value="random">随机</option>
         <option value="faubourg">Hermès Faubourg Saint-Honoré</option>
         <option value="georgev">Hermès George V</option>
         <option value="sevres">Hermès Sèvres</option>
     </select>
 </div>
+<div id="device_list"/>
 <br/>
 <button id="start_book_btn">开始约会
 </button>
diff --git a/main.js b/main.js
index 532be06..d7521d0 100644
--- a/main.js
+++ b/main.js
@@ -1,4 +1,5 @@
 const {app, BrowserWindow, ipcMain} = require('electron')
+const {_android: android} = require('playwright');
 const startBookWithNumbers = require('./src/appointment')
 const path = require("path");
 
@@ -17,6 +18,7 @@ const createWindow = () => {
     ipcMain.on('start-book', (event, startNumber, endNumber, selectedStore) => {
         startBook(startNumber, endNumber, selectedStore)
     })
+    ipcMain.handle('scan-devices', scanDevices)
     win.webContents.openDevTools();
 }
 
@@ -40,5 +42,12 @@ function startBook(startNumber, endNumber, selectedStore) {
     })
 }
 
+async function scanDevices() {
+    let deviceList = await android.devices()
+    return deviceList.map((item) => {
+        return [item.model(), item.serial()]
+    })
+}
+
 
 
diff --git a/preload.js b/preload.js
index ea17cd0..23f5dd9 100644
--- a/preload.js
+++ b/preload.js
@@ -1,6 +1,6 @@
-
 const {contextBridge, ipcRenderer} = require('electron')
 
 contextBridge.exposeInMainWorld('appointment', {
-    startBook: (startNumber, endNumber, selectedStore) => ipcRenderer.send('start-book', startNumber, endNumber, selectedStore)
-})
+    startBook: (startNumber, endNumber, selectedStore) => ipcRenderer.send('start-book', startNumber, endNumber, selectedStore),
+    scanDevices: () => ipcRenderer.invoke('scan-devices')
+})
\ No newline at end of file
diff --git a/renderer.js b/renderer.js
index 0fba8dc..c944f8c 100644
--- a/renderer.js
+++ b/renderer.js
@@ -3,6 +3,18 @@ let endNumber = 0;
 let selectedStore = 'faubourg';
 
 window.addEventListener('load', () => {
+    window.appointment.scanDevices().then((deviceList) => {
+        // Make the list
+        let listElement = document.getElementById('device_list');
+        for (i = 0; i < deviceList.length; ++i) {
+            // Create an item for each one
+            let listItem = document.createElement('li');
+            // Add the item text
+            listItem.innerHTML = deviceList[i].join(" : ");
+            // Add listItem to the listElement
+            listElement.appendChild(listItem);
+        }
+    })
     document.getElementById("start_book_btn").addEventListener('click', () => {
         window.appointment.startBook(startNumber, endNumber, selectedStore)
     })
diff --git a/src/appointment.js b/src/appointment.js
index 710fe34..d71f6e8 100644
--- a/src/appointment.js
+++ b/src/appointment.js
@@ -35,8 +35,8 @@ async function needToBook(contact, mongoManager) {
 }
 
 async function startBook(contactPojo, device, selectedStore) {
-    console.log(`Model: ${device.model()}`);
-    console.log(`Serial: ${device.serial()}`);
+    console.log(`型号: ${device.model()}`);
+    console.log(`序列号: ${device.serial()}`);
     if (await needToBook(contactPojo, mongoManager)) {
         let commandor = new CommandorPage(contactPojo, device, mongoManager, selectedStore);
         //read contacts form excel
diff --git a/src/workers/CommandorPage.js b/src/workers/CommandorPage.js
index e1cddb7..ae08482 100644
--- a/src/workers/CommandorPage.js
+++ b/src/workers/CommandorPage.js
@@ -196,10 +196,12 @@ class CommandorPage {
     async chooseStore(page) {
         try {
             if (!page.isClosed()) {
-                await page.locator(PREFER_STORE).focus()
-                await delay(1000)
-                await page.click(PREFER_STORE);
-                await page.selectOption(PREFER_STORE, this.selectedStore);
+                if (selectedStore !== "random") {
+                    await page.locator(PREFER_STORE).focus()
+                    await delay(1000)
+                    await page.click(PREFER_STORE);
+                    await page.selectOption(PREFER_STORE, this.selectedStore);
+                }
             }
         } catch (e) {
             console.log(e);