diff --git a/app/build.gradle b/app/build.gradle
index 325b6a5..8dfa293 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "me.lucky.red"
         minSdk 29
         targetSdk 32
-        versionCode 2
-        versionName "1.0.1"
+        versionCode 3
+        versionName "1.0.2"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/me/lucky/red/CallRedirectionService.kt b/app/src/main/java/me/lucky/red/CallRedirectionService.kt
index 46ed0fd..f01473f 100644
--- a/app/src/main/java/me/lucky/red/CallRedirectionService.kt
+++ b/app/src/main/java/me/lucky/red/CallRedirectionService.kt
@@ -21,7 +21,7 @@ class CallRedirectionService : CallRedirectionService() {
         )
     }
 
-    private lateinit var prefs: Preferences
+    lateinit var prefs: Preferences
     private lateinit var window: PopupWindow
     private var connectivityManager: ConnectivityManager? = null
 
@@ -30,6 +30,11 @@ class CallRedirectionService : CallRedirectionService() {
         init()
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        window.cancel()
+    }
+
     private fun init() {
         prefs = Preferences(this)
         window = PopupWindow(this)
diff --git a/app/src/main/java/me/lucky/red/MainActivity.kt b/app/src/main/java/me/lucky/red/MainActivity.kt
index 8d571c9..cf2d784 100644
--- a/app/src/main/java/me/lucky/red/MainActivity.kt
+++ b/app/src/main/java/me/lucky/red/MainActivity.kt
@@ -44,12 +44,19 @@ class MainActivity : AppCompatActivity() {
         prefs = Preferences(this)
         roleManager = getSystemService(RoleManager::class.java)
         binding.apply {
+            redirectionDelay.value = (prefs.redirectionDelay / 1000).toFloat()
             toggle.isChecked = prefs.isServiceEnabled
         }
     }
 
     private fun setup() {
         binding.apply {
+            redirectionDelay.setLabelFormatter {
+                String.format("%.1f", it)
+            }
+            redirectionDelay.addOnChangeListener { _, value, _ ->
+                prefs.redirectionDelay = (value * 1000).toLong()
+            }
             toggle.setOnCheckedChangeListener { _, isChecked ->
                 if (isChecked && !hasPermissions()) {
                     toggle.isChecked = false
diff --git a/app/src/main/java/me/lucky/red/PopupWindow.kt b/app/src/main/java/me/lucky/red/PopupWindow.kt
index 6156826..07009b2 100644
--- a/app/src/main/java/me/lucky/red/PopupWindow.kt
+++ b/app/src/main/java/me/lucky/red/PopupWindow.kt
@@ -14,10 +14,6 @@ import java.util.*
 import kotlin.concurrent.timerTask
 
 class PopupWindow(private val service: CallRedirectionService) {
-    companion object {
-        private const val CANCEL_DELAY = 2000L
-    }
-
     private val windowManager = service
         .applicationContext
         .getSystemService(WindowManager::class.java)
@@ -41,9 +37,8 @@ class PopupWindow(private val service: CallRedirectionService) {
 
     init {
         view.setOnClickListener {
-            timer?.cancel()
+            cancel()
             service.placeCallUnmodified()
-            remove()
         }
     }
 
@@ -70,7 +65,7 @@ class PopupWindow(private val service: CallRedirectionService) {
                 return@timerTask
             }
             service.cancelCall()
-        }, CANCEL_DELAY)
+        }, service.prefs.redirectionDelay)
         view.findViewById<TextView>(R.id.description).text = String.format(
             service.getString(R.string.popup),
             service.getString(destinationId),
@@ -104,4 +99,9 @@ class PopupWindow(private val service: CallRedirectionService) {
         } catch (exc: WindowManager.BadTokenException) { return false }
         return true
     }
+
+    fun cancel() {
+        timer?.cancel()
+        remove()
+    }
 }
diff --git a/app/src/main/java/me/lucky/red/Preferences.kt b/app/src/main/java/me/lucky/red/Preferences.kt
index 1c617e0..0ac37f5 100644
--- a/app/src/main/java/me/lucky/red/Preferences.kt
+++ b/app/src/main/java/me/lucky/red/Preferences.kt
@@ -7,6 +7,7 @@ import androidx.preference.PreferenceManager
 class Preferences(ctx: Context) {
     companion object {
         private const val SERVICE_ENABLED = "service_enabled"
+        private const val REDIRECTION_DELAY = "redirection_delay"
     }
 
     private val prefs = PreferenceManager.getDefaultSharedPreferences(ctx)
@@ -14,4 +15,8 @@ class Preferences(ctx: Context) {
     var isServiceEnabled: Boolean
         get() = prefs.getBoolean(SERVICE_ENABLED, false)
         set(value) = prefs.edit { putBoolean(SERVICE_ENABLED, value) }
+
+    var redirectionDelay: Long
+        get() = prefs.getLong(REDIRECTION_DELAY, 2000L)
+        set(value) = prefs.edit { putLong(REDIRECTION_DELAY, value) }
 }
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 86637e6..1a2bb9c 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -16,6 +16,39 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <ScrollView
+        android:id="@+id/scrollView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginVertical="16dp"
+        app:layout_constraintBottom_toTopOf="@+id/toggle"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/description">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <com.google.android.material.slider.Slider
+                android:id="@+id/redirectionDelay"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:contentDescription="@string/redirection_delay_description"
+                android:stepSize="0.5"
+                android:valueFrom="2"
+                android:valueTo="4" />
+
+            <TextView
+                android:id="@+id/description2"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/redirection_delay_description" />
+
+        </LinearLayout>
+    </ScrollView>
+
     <ToggleButton
         android:id="@+id/toggle"
         android:layout_width="0dp"
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index ab42d22..4b723af 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -5,4 +5,5 @@
     <string name="popup">Перенаправление в %1$s</string>
     <string name="signal">Signal</string>
     <string name="telegram">Telegram</string>
+    <string name="redirection_delay_description">Задержка до того, как звонок будет перенаправлен.</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 79d8666..e519080 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -5,4 +5,5 @@
     <string name="popup">Redirecting to %1$s</string>
     <string name="signal">Signal</string>
     <string name="telegram">Telegram</string>
+    <string name="redirection_delay_description">Delay before a call will be redirected.</string>
 </resources>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 93728ce..9262dea 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.0'
+        classpath 'com.android.tools.build:gradle:7.1.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/fastlane/metadata/android/en-US/changelogs/3.txt b/fastlane/metadata/android/en-US/changelogs/3.txt
new file mode 100644
index 0000000..9c13478
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/3.txt
@@ -0,0 +1 @@
+redirection delay selector
diff --git a/fastlane/metadata/android/en-US/images/phoneScreenshots/1.png b/fastlane/metadata/android/en-US/images/phoneScreenshots/1.png
index bca97f5..4f2accb 100644
Binary files a/fastlane/metadata/android/en-US/images/phoneScreenshots/1.png and b/fastlane/metadata/android/en-US/images/phoneScreenshots/1.png differ