diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index cf10b8d0..ed03619d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -77,7 +77,8 @@
 
         <activity
             android:name=".ChannelActivity"
-            android:exported="false" />
+            android:exported="false"
+            android:label="@string/activity_channel_title" />
 
         <service
             android:name=".MicroPhotoService"
diff --git a/app/src/main/java/com/xypower/mpapp/ChannelActivity.java b/app/src/main/java/com/xypower/mpapp/ChannelActivity.java
index f013be84..8d1c9596 100644
--- a/app/src/main/java/com/xypower/mpapp/ChannelActivity.java
+++ b/app/src/main/java/com/xypower/mpapp/ChannelActivity.java
@@ -5,6 +5,8 @@ import androidx.appcompat.app.AppCompatActivity;
 import android.content.Context;
 import android.os.Bundle;
 import android.text.TextUtils;
+import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
@@ -77,6 +79,16 @@ public class ChannelActivity extends AppCompatActivity {
         }
     };
 
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // TODO Auto-generated method stub
+        MenuInflater mMenuInflater = new MenuInflater(this);
+        mMenuInflater.inflate(R.menu.menu_channel, menu);
+        //return true;
+        return super.onCreateOptionsMenu(menu);
+    }
+
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
@@ -86,6 +98,11 @@ public class ChannelActivity extends AppCompatActivity {
                 finish();
                 return true;
 
+            case R.id.action_save:
+                // todo: goto back activity from here
+                int channel = binding.channels.getSelectedItemPosition() + 1;
+                saveChannelParams(channel);
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }
@@ -131,6 +148,22 @@ public class ChannelActivity extends AppCompatActivity {
                 binding.cameraId.setText("");
             }
 
+            if (jsonObject.has("resolutionCX")) {
+                binding.resolutionCX.setText(Integer.toString(jsonObject.optInt("resolutionCX")));
+            } else {
+                binding.resolutionCX.setText("");
+            }
+            if (jsonObject.has("resolutionCY")) {
+                binding.resolutionCY.setText(Integer.toString(jsonObject.optInt("resolutionCY")));
+            } else {
+                binding.resolutionCY.setText("");
+            }
+            if (jsonObject.has("quality")) {
+                binding.quality.setText(Integer.toString(jsonObject.optInt("quality")));
+            } else {
+                binding.quality.setText("");
+            }
+
             JSONObject osdJsonObj = jsonObject.optJSONObject("osd");
             if (osdJsonObj != null) {
                 binding.osdLeftTop.setText(osdJsonObj.optString("leftTop", ""));
@@ -228,6 +261,21 @@ public class ChannelActivity extends AppCompatActivity {
             } else {
                 jsonObject.remove("cameraId");
             }
+            if (!TextUtils.isEmpty(binding.resolutionCX.getText().toString())) {
+                jsonObject.put("resolutionCX", Integer.parseInt(binding.resolutionCX.getText().toString()));
+            } else {
+                jsonObject.remove("resolutionCX");
+            }
+            if (!TextUtils.isEmpty(binding.resolutionCY.getText().toString())) {
+                jsonObject.put("resolutionCY", Integer.parseInt(binding.resolutionCY.getText().toString()));
+            } else {
+                jsonObject.remove("resolutionCY");
+            }
+            if (!TextUtils.isEmpty(binding.quality.getText().toString())) {
+                jsonObject.put("quality", Integer.parseInt(binding.quality.getText().toString()));
+            } else {
+                jsonObject.remove("quality");
+            }
 
             JSONObject osdJsonObj = jsonObject.optJSONObject("osd");
             if (osdJsonObj == null) {
diff --git a/app/src/main/java/com/xypower/mpapp/MainActivity.java b/app/src/main/java/com/xypower/mpapp/MainActivity.java
index 9c8030c2..8d201a0f 100644
--- a/app/src/main/java/com/xypower/mpapp/MainActivity.java
+++ b/app/src/main/java/com/xypower/mpapp/MainActivity.java
@@ -122,6 +122,8 @@ public class MainActivity extends AppCompatActivity {
         public int port;
         public int protocol;
         public int networkProtocol;
+        public int heartbeat;
+        public int packetSize;
     }
 
     @Override
@@ -544,7 +546,10 @@ public class MainActivity extends AppCompatActivity {
         }
         appConfig.networkProtocol = MainActivity.this.binding.networkProtocol.getSelectedItemPosition();
 
-        saveAppConfig(appConfig.cmdid, appConfig.server, appConfig.port, appConfig.protocol, appConfig.networkProtocol);
+        appConfig.heartbeat = TextUtils.isEmpty(binding.heartbeat.getText().toString()) ? 0 : Integer.parseInt(binding.heartbeat.getText().toString());
+        appConfig.packetSize = TextUtils.isEmpty(binding.packetSize.getText().toString()) ? 0 : Integer.parseInt(binding.packetSize.getText().toString());
+
+        saveAppConfig(appConfig);
 
         return appConfig;
     }
@@ -604,7 +609,7 @@ public class MainActivity extends AppCompatActivity {
         return appConfig;
     }
 
-    private void saveAppConfig(String cmdid, String server, int port, int protocol, int networkProtocol) {
+    private void saveAppConfig(AppConfig appConfig) {
 
         String appPath = MicroPhotoContext.buildAppDir(this.getApplicationContext());
         InputStreamReader inputStreamReader = null;
@@ -631,11 +636,22 @@ public class MainActivity extends AppCompatActivity {
 
             JSONObject jsonObject =stringBuilder.length() > 0 ? (new JSONObject(stringBuilder.toString())) : (new JSONObject());
 
-            jsonObject.put("CMDID", cmdid);
-            jsonObject.put("Server", server);
-            jsonObject.put("Port", port);
-            jsonObject.put("Protocol", protocol);
-            jsonObject.put("NetworkProtocol", networkProtocol);
+            jsonObject.put("CMDID", appConfig.cmdid);
+            jsonObject.put("Server", appConfig.server);
+            jsonObject.put("Port", appConfig.port);
+            jsonObject.put("Protocol", appConfig.protocol);
+            jsonObject.put("NetworkProtocol", appConfig.networkProtocol);
+
+            if (appConfig.heartbeat > 0) {
+                jsonObject.put("heartbeat", appConfig.heartbeat);
+            } else {
+                jsonObject.remove("heartbeat");
+            }
+            if (appConfig.packetSize > 0) {
+                jsonObject.put("packetSize", appConfig.packetSize);
+            } else {
+                jsonObject.remove("packetSize");
+            }
 
             outputStreamWriter = new OutputStreamWriter(new FileOutputStream(new File(appPath + "data/App.json")), "UTF-8");
             outputStreamWriter.write(jsonObject.toString());
diff --git a/app/src/main/res/layout-land/activity_main.xml b/app/src/main/res/layout-land/activity_main.xml
index 5b6de180..c3b501cd 100644
--- a/app/src/main/res/layout-land/activity_main.xml
+++ b/app/src/main/res/layout-land/activity_main.xml
@@ -62,7 +62,7 @@
         android:maxLines="1"
         android:inputType="text"
         android:imeOptions="actionDone"
-        android:text="47.96.238.157"
+        android:hint="main_server"
         app:layout_constraintStart_toStartOf="@+id/cmdid"
         app:layout_constraintTop_toBottomOf="@+id/cmdid" />
 
@@ -89,6 +89,56 @@
         app:layout_constraintLeft_toRightOf="@+id/port"
         app:layout_constraintTop_toTopOf="@+id/port" />
 
+    <TextView
+        android:id="@+id/textViewHeartbeat"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:text="@string/main_heartbeat"
+        app:layout_constraintBottom_toBottomOf="@+id/heartbeat"
+        app:layout_constraintStart_toStartOf="@id/textViewCmdId"
+        app:layout_constraintTop_toTopOf="@+id/heartbeat" />
+
+    <EditText
+        android:id="@+id/heartbeat"
+        android:layout_width="32dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:inputType="none|number"
+        android:imeOptions="actionDone"
+        android:maxLines="1"
+        android:text="10"
+        android:hint="main_heartbeat"
+        app:layout_constraintStart_toEndOf="@+id/textViewHeartbeat"
+        app:layout_constraintTop_toBottomOf="@+id/server" />
+
+    <TextView
+        android:id="@+id/textViewPacketSize"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:text="@string/main_packet_size"
+        app:layout_constraintBottom_toBottomOf="@+id/packetSize"
+        app:layout_constraintStart_toEndOf="@+id/heartbeat"
+        app:layout_constraintTop_toTopOf="@+id/packetSize" />
+
+    <EditText
+        android:id="@+id/packetSize"
+        android:layout_width="64dp"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:inputType="none|number"
+        android:imeOptions="actionDone"
+        android:maxLines="1"
+        android:text="2048"
+        app:layout_constraintLeft_toRightOf="@+id/textViewPacketSize"
+        app:layout_constraintTop_toBottomOf="@+id/server" />
+
     <Button
         android:id="@+id/startServBtn"
         android:layout_width="wrap_content"
@@ -97,7 +147,7 @@
         android:layout_marginTop="8dp"
         android:text="Start"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/port"
+        app:layout_constraintTop_toBottomOf="@+id/heartbeat"
 
         />
 
@@ -110,7 +160,7 @@
         android:enabled="false"
         android:text="Stop"
         app:layout_constraintStart_toEndOf="@+id/startServBtn"
-        app:layout_constraintTop_toBottomOf="@+id/port" />
+        app:layout_constraintTop_toBottomOf="@+id/heartbeat" />
 
     <Button
         android:id="@+id/saveCfg"
diff --git a/app/src/main/res/layout/activity_channel.xml b/app/src/main/res/layout/activity_channel.xml
index 88de13aa..3c0ed37d 100644
--- a/app/src/main/res/layout/activity_channel.xml
+++ b/app/src/main/res/layout/activity_channel.xml
@@ -40,6 +40,41 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <EditText
+        android:id="@+id/resolutionCX"
+        android:layout_width="120dp"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="@string/channel_cfg_width"
+        android:inputType="numberDecimal"
+        android:layout_marginStart="6dp"
+        android:layout_marginTop="12dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
+
+    <EditText
+        android:id="@+id/resolutionCY"
+        android:layout_width="120dp"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="@string/channel_cfg_height"
+        android:inputType="numberDecimal"
+        android:layout_marginStart="6dp"
+        android:layout_marginTop="12dp"
+        app:layout_constraintStart_toEndOf="@+id/resolutionCX"
+        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
+
+    <EditText
+        android:id="@+id/quality"
+        android:layout_width="120dp"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="@string/channel_cfg_quality"
+        android:inputType="numberDecimal"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="12dp"
+        app:layout_constraintStart_toEndOf="@+id/resolutionCY"
+        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
 
     <Switch
         android:id="@+id/btnAutoExplosure"
@@ -49,7 +84,7 @@
         android:layout_marginTop="6dp"
         android:text="@string/channel_cfg_auto_exposure"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
+        app:layout_constraintTop_toBottomOf="@+id/resolutionCX" />
 
     <Switch
         android:id="@+id/btnAutoFocus"
@@ -59,7 +94,7 @@
         android:layout_marginTop="6dp"
         android:text="@string/channel_cfg_auto_focus"
         app:layout_constraintStart_toEndOf="@+id/btnAutoExplosure"
-        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
+        app:layout_constraintTop_toBottomOf="@+id/resolutionCX" />
 
     <Switch
         android:id="@+id/btnHdrMode"
@@ -69,7 +104,7 @@
         android:layout_marginTop="6dp"
         android:text="HDR"
         app:layout_constraintStart_toEndOf="@+id/btnAutoFocus"
-        app:layout_constraintTop_toBottomOf="@+id/btnSave" />
+        app:layout_constraintTop_toBottomOf="@+id/resolutionCX" />
 
     <TextView
         android:id="@+id/textViewExplosure"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 5f1fbb5d..6855b9be 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -81,6 +81,56 @@
         app:layout_constraintLeft_toRightOf="@+id/port"
         app:layout_constraintTop_toTopOf="@+id/port" />
 
+    <TextView
+        android:id="@+id/textViewHeartbeat"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:text="@string/main_heartbeat"
+        app:layout_constraintBottom_toBottomOf="@+id/heartbeat"
+        app:layout_constraintStart_toStartOf="@id/textViewCmdId"
+        app:layout_constraintTop_toTopOf="@+id/heartbeat" />
+
+    <EditText
+        android:id="@+id/heartbeat"
+        android:layout_width="32dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:inputType="none|number"
+        android:imeOptions="actionDone"
+        android:maxLines="1"
+        android:text="10"
+        android:hint="main_heartbeat"
+        app:layout_constraintStart_toEndOf="@+id/textViewHeartbeat"
+        app:layout_constraintTop_toBottomOf="@+id/server" />
+
+    <TextView
+        android:id="@+id/textViewPacketSize"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:text="@string/main_packet_size"
+        app:layout_constraintBottom_toBottomOf="@+id/packetSize"
+        app:layout_constraintStart_toEndOf="@+id/heartbeat"
+        app:layout_constraintTop_toTopOf="@+id/packetSize" />
+
+    <EditText
+        android:id="@+id/packetSize"
+        android:layout_width="64dp"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:inputType="none|number"
+        android:imeOptions="actionDone"
+        android:maxLines="1"
+        android:text="2048"
+        app:layout_constraintLeft_toRightOf="@+id/textViewPacketSize"
+        app:layout_constraintTop_toBottomOf="@+id/server" />
+
     <Button
         android:id="@+id/startServBtn"
         android:layout_width="wrap_content"
@@ -89,7 +139,7 @@
         android:layout_marginTop="8dp"
         android:text="Start"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/port"
+        app:layout_constraintTop_toBottomOf="@+id/heartbeat"
 
         />
 
@@ -102,7 +152,7 @@
         android:enabled="false"
         android:text="Stop"
         app:layout_constraintStart_toEndOf="@+id/startServBtn"
-        app:layout_constraintTop_toBottomOf="@+id/port" />
+        app:layout_constraintTop_toBottomOf="@+id/heartbeat" />
 
     <Button
         android:id="@+id/saveCfg"
diff --git a/app/src/main/res/menu/menu_channel.xml b/app/src/main/res/menu/menu_channel.xml
new file mode 100644
index 00000000..9a7d7782
--- /dev/null
+++ b/app/src/main/res/menu/menu_channel.xml
@@ -0,0 +1,10 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.xypower.mpapp.ChannelActivity">
+    <item
+        android:id="@+id/action_save"
+        android:orderInCategory="100"
+        android:title="@string/btn_save"
+        app:showAsAction="always|withText" />
+</menu>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1478cede..ab2e6274 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,6 +1,11 @@
 <resources>
     <string name="app_name">MicroPhoto</string>
     <string name="text_name_notification">Notification Name</string>
+    <string name="main_heartbeat">心跳(分钟)</string>
+    <string name="main_packet_size">包大小</string>
+    <string name="main_server">支持域名自动转IP</string>
+
+    <string name="activity_channel_title">通道设置</string>
     <string name="osd_left_top">左上 OSD</string>
     <string name="osd_right_top">右上 OSD</string>
     <string name="osd_right_bottom">右下 OSD</string>
@@ -9,4 +14,10 @@
     <string name="btn_save">保存</string>
     <string name="channel_cfg_auto_exposure">自动曝光</string>
     <string name="channel_cfg_auto_focus">自动对焦</string>
+    <string name="channel_cfg_width">照片宽</string>
+    <string name="channel_cfg_height">照片高</string>
+    <string name="channel_cfg_quality">压缩率(50-100)</string>
+
+
+
 </resources>
\ No newline at end of file