diff --git a/src/main/java/device/radioPlayer/RadioPlayer.java b/src/main/java/device/radioPlayer/RadioPlayer.java
index ca8897d..36d7170 100644
--- a/src/main/java/device/radioPlayer/RadioPlayer.java
+++ b/src/main/java/device/radioPlayer/RadioPlayer.java
@@ -8,13 +8,14 @@ public class RadioPlayer implements Device {
 
     public RadioPlayer() {
         super();
-        Playlist.add("Radio YouFM");
-        Playlist.add("Radio Teddy");
-        Playlist.add("Radio MegaHits");
+        Playlist.add("YouFM");
+        Playlist.add("Teddy");
+        Playlist.add("MegaHits");
         playTrack=Playlist.get(0);
     }
 
     ArrayList<String> Playlist=new ArrayList<String>();
+
     int Lautstaerke = 0;
     String playTrack="";
 
@@ -26,6 +27,41 @@ public class RadioPlayer implements Device {
         return Lautstaerke;
     }
 
+    public void changeRegion(String region){
+        switch (region) {
+            case "BY":
+                Playlist.clear();
+                Playlist.add("Antenne Bayern");
+                Playlist.add("Bayern 1");
+                Playlist.add("Bayern 3");
+                Playlist.add("Hit Radio N1");
+                playTrack=Playlist.get(0);
+                break;
+            case "HE":
+                Playlist.clear();
+                Playlist.add("Hit Radio FFH");
+                Playlist.add("HR 1");
+                Playlist.add("HR 3");
+                Playlist.add("You FM");
+                playTrack=Playlist.get(0);
+                break;
+            case "BW":
+                Playlist.clear();
+                Playlist.add("DASDING");
+                Playlist.add("SWR 1");
+                Playlist.add("SWR 3");
+                Playlist.add("sunshine live");
+                playTrack=Playlist.get(0);
+                break;
+            default:
+                Playlist.clear();
+                Playlist.add("YouFM");
+                Playlist.add("Teddy");
+                Playlist.add("MegaHits");
+                playTrack=Playlist.get(0);
+                break;
+        }
+    }
 
     @Override
     public void louder() {
diff --git a/src/test/java/device/radioPlayer/RadioPlayerTest.java b/src/test/java/device/radioPlayer/RadioPlayerTest.java
index e7e2410..89092ba 100644
--- a/src/test/java/device/radioPlayer/RadioPlayerTest.java
+++ b/src/test/java/device/radioPlayer/RadioPlayerTest.java
@@ -44,35 +44,30 @@ class RadioPlayerTest {
         );
     }
 
-/*
-    @Test
-    void louder() {
-        rp.setLautstaerke(0);
-        rp.louder();
-        assertThat(rp.getLautstaerke()).isEqualTo(1);
+    @ParameterizedTest
+    @MethodSource("changeRegionOptions")
+    void changeRegionTest(String testName, RadioPlayer testRp, String expectedResult) {
+        String station = testRp.playTrack;
+        assertThat(station).describedAs(testName).isEqualTo(expectedResult);
     }
 
-    @Test
-    void louderMax() {
-        rp.setLautstaerke(100);
-        rp.louder();
-        assertThat(rp.getLautstaerke()).isEqualTo(100);
-    }
+    static Stream<Arguments> changeRegionOptions() {
+        RadioPlayer rp1 = new RadioPlayer();
+        RadioPlayer rp2 = new RadioPlayer();
+        RadioPlayer rp3 = new RadioPlayer();
+        rp1.changeRegion("BY");
+        rp2.changeRegion("HE");
+        rp3.changeRegion("BW");
 
-    @Test
-    void quieter() {
-        rp.setLautstaerke(1);
-        rp.quieter();
-        assertThat(rp.getLautstaerke()).isEqualTo(0);
-    }
-    @Test
-    void quieterMax() {
-        rp.setLautstaerke(0);
-        rp.quieter();
-        assertThat(rp.getLautstaerke()).isEqualTo(0);
+        return Stream.of(
+                Arguments.of("Test change Region to Bayern", rp1, "Antenne Bayern"),
+                Arguments.of("Test change Region to Hessen", rp2, "Hit Radio FFH"),
+                Arguments.of("Test change Region to Baden-Wuerttemberg", rp3, "DASDING")
+        );
     }
 
-    Jenkins config test
+
+/*
     @Test
     void getVolume() {
     }
@@ -94,9 +89,9 @@ class RadioPlayerTest {
         rp2.prev();
         rp3.prev();
         return Stream.of(
-                Arguments.of("Next Station Test", rp1, "Radio Teddy"),
-                Arguments.of("Prev Station Test", rp2, "Radio YouFM"),
-                Arguments.of("Prev works on first Station ", rp3, "Radio MegaHits")
+                Arguments.of("Next Station Test", rp1, "Teddy"),
+                Arguments.of("Prev Station Test", rp2, "YouFM"),
+                Arguments.of("Prev works on first Station ", rp3, "MegaHits")
         );
     }