diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a3aba2..017c378 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,26 @@ response = apiaudio.SyncTTS.create(text="Hello", voice="shelly", metadata=True)
 
 * **Breaking Change** Since 4th of July, when using certain sound templates in conjunction with mastering section properties, resulted in sections that were in-fact to long. We've fixed these errors and this is already shipped. This will improve your experience, but you may notice some differences with behaviour of our mastering engine.
 
+## Wednesday 13th July 2022
+* We added two features to `syncTTS` resource:
+  * Retrieve URL to audio instead of raw data (Note: size limits don't apply in this case!):
+  ```python
+    dictionary = apiaudio.SyncTTS.create(
+        text="Hello, how are you?",
+        voice="joanna",
+        url=True
+    )
+    url = dictionary["url"]
+  ```
+  * Specify format of audio (currently supported formats are: "mp3", "wav", "pcm"):
+  ```python
+    mp3_bytes = apiaudio.SyncTTS.create(
+        text="Hello, how are you?",
+        voice="joanna",
+        format="mp3"
+    )
+  ```
+
 ## Friday 8th July 2022
 
 ### New Voices
diff --git a/apiaudio/__init__.py b/apiaudio/__init__.py
index 15221e5..164d1e7 100644
--- a/apiaudio/__init__.py
+++ b/apiaudio/__init__.py
@@ -3,7 +3,7 @@
 
 # Configuration variables
 
-sdk_version = "0.16.4"
+sdk_version = "0.16.5"
 
 api_key = None
 assume_org_id = None
diff --git a/apiaudio/api_request.py b/apiaudio/api_request.py
index 5ffe538..c3869d9 100644
--- a/apiaudio/api_request.py
+++ b/apiaudio/api_request.py
@@ -43,10 +43,11 @@ def _build_header(cls):
         }
 
     @classmethod
-    def _post_request(cls, json, url=None):
+    def _post_request(cls, json, url=None, headers=None):
+        headers = headers or {}
         loop_status_code = cls.__dict__.get("loop_status_code")
         url = url or f"{apiaudio.api_base}{cls.resource_path}"
-        headers = cls._build_header()
+        headers.update(cls._build_header())
         r = requests.post(url=url, headers=headers, json=json)
 
         if loop_status_code:
@@ -58,21 +59,10 @@ def _post_request(cls, json, url=None):
 
         cls._expanded_raise_for_status(r)
 
+        if r.headers["Content-Type"] != "application/json":
+            return r.content
         return r.json()
 
-    @classmethod
-    def _post_request_raw(cls, json, url=None, istype="wav"):
-        url = url or cls.resource_path
-        url = f"{apiaudio.api_base}{url}"
-        headers = cls._build_header()
-        if istype == "wav":
-            headers["Accept"] = "audio/wav"
-        r = requests.post(url=url, headers=headers, json=json)
-
-        cls._expanded_raise_for_status(r)
-
-        return r.content
-
     @classmethod
     def _delete_request(cls, url=None, path_param=None, request_params=None):
         url = url or f"{apiaudio.api_base}{cls.resource_path}"
diff --git a/apiaudio/api_resources/syncTTS.py b/apiaudio/api_resources/syncTTS.py
index 97097af..0953fec 100644
--- a/apiaudio/api_resources/syncTTS.py
+++ b/apiaudio/api_resources/syncTTS.py
@@ -7,6 +7,7 @@ class SyncTTS(CreatableResource):
 
     @classmethod
     def create(cls, **params):
-        return cls._post_request_raw(
-            json=params, url=f"{cls.resource_path}", istype="wav"
-        )
+        headers = {"Accept": "audio/wav"}
+        if params.get("format"):
+            headers = {"Accept": f"audio/{params.pop('format')}"}
+        return cls._post_request(json=params, headers=headers)
diff --git a/tests/test_config.py b/tests/test_config.py
index 86d6354..7dd07ba 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -6,7 +6,7 @@
 from time import time
 
 apiaudio.api_key = os.environ["AFLR_API_KEY"]
-apiaudio.api_base = "https://staging-v1.api.audio"
+#apiaudio.api_base = "https://staging-v1.api.audio"
 
 
 def test_level_setting():
@@ -74,6 +74,30 @@ def test_script_versions():
         assert speech[key]["status_code"] == "201"
 
 
+def test_synctts():
+    audio = apiaudio.SyncTTS.create(
+        text="Hello, test 123!",
+        voice="joanna"
+    )
+    assert isinstance(audio, bytes)
+    assert b"RIFF" in audio
+
+    d = apiaudio.SyncTTS.create(
+        text="Hello, test 123.",
+        voice="joanna",
+        url=True
+    )
+    assert isinstance(d, dict)
+    assert "api.audio" in d.get("url", [])
+
+    mp3_audio = apiaudio.SyncTTS.create(
+        text="Hello, test 123.",
+        voice="joanna",
+        format="mp3"
+    )
+    assert isinstance(mp3_audio, bytes)
+    assert not b"RIFF" in mp3_audio
+
 def test_processing_loop_speech():
     t0 = time()
     speech = apiaudio.Speech.create(scriptId="longProcessing", voice="Dieter")