diff --git a/examples/sample_client.py b/examples/sample_client.py
index 1a9c115..7602d84 100755
--- a/examples/sample_client.py
+++ b/examples/sample_client.py
@@ -26,7 +26,7 @@ async def on_classifier_event(self, ce: ClassifierEvent):
         pass
 
     async def on_aggregated_data(self, ad: AggregatedData):
-        logging.info(ad.json())
+        logging.info(ad)
 
     async def on_emg_data(self, emg: EMGData):
         # logging.info(emg)
diff --git a/myo/core.py b/myo/core.py
index 4553637..75a67d4 100644
--- a/myo/core.py
+++ b/myo/core.py
@@ -62,7 +62,7 @@ def __init__(self, fvd: FVData, imu: IMUData):
         self.imu = imu
 
     def __str__(self):
-        return f"{repr(self.fvd)},{repr(self.imu)}"
+        return f"{','.join(map(str, self.fvd.fv))},{self.imu}"
 
     def json(self):
         return json.dumps(self.to_dict())
diff --git a/myo/types.py b/myo/types.py
index 046518d..94ea826 100644
--- a/myo/types.py
+++ b/myo/types.py
@@ -197,6 +197,9 @@ def __init__(self, w, x, y, z):
             self.y = y / ORIENTATION_SCALE
             self.z = z / ORIENTATION_SCALE
 
+        def __str__(self):
+            return f"{self.w},{self.x},{self.y},{self.z}"
+
         def to_dict(self):
             return {"w": self.w, "x": self.x, "y": self.y, "z": self.z}
 
@@ -218,6 +221,9 @@ def __repr__(self):
             )
         )
 
+    def __str__(self):
+        return f"{self.orientation},{','.join(map(str, self.accelerometer))},{','.join(map(str, self.gyroscope))}"
+
     def json(self):
         return json.dumps(self.to_dict())