diff --git a/src/main/java/device/usbPlayer/UsbPlayer.java b/src/main/java/device/usbPlayer/UsbPlayer.java
index fbb8aa4..acf923b 100644
--- a/src/main/java/device/usbPlayer/UsbPlayer.java
+++ b/src/main/java/device/usbPlayer/UsbPlayer.java
@@ -63,6 +63,8 @@ public class UsbPlayer implements Device {
         return Lautstaerke;
     }
 
+    public UsbPlayer() {}
+
     //*********constructure********
     public UsbPlayer(USB_Stick stick) {
         super();