diff --git a/cmd.py b/cmd.py
index 2d68db561b..a1a14f0e07 100755
--- a/cmd.py
+++ b/cmd.py
@@ -5,7 +5,7 @@ import argparse
 import json
 import base64
 
-from trezorlib.client import TrezorClient
+from trezorlib.client import TrezorClientDebug
 from trezorlib.api_blockchain import BlockchainApi
 from trezorlib.protobuf_json import pb2json
 
@@ -319,7 +319,7 @@ def main():
         return
 
     transport = get_transport(args.transport, args.path)
-    client = TrezorClient(transport)
+    client = TrezorClientDebug(transport)
     client.set_tx_func(BlockchainApi().get_tx)
     cmds = Commands(client)
     
diff --git a/trezorlib/client.py b/trezorlib/client.py
index 67b6fb5738..73816e0b50 100644
--- a/trezorlib/client.py
+++ b/trezorlib/client.py
@@ -63,13 +63,9 @@ class BaseClient(object):
 
     def call_raw(self, msg):
         try:
-            print "SENDING", pprint(msg)
             self.transport.session_begin()
-
             self.transport.write(msg)
             resp = self.transport.read_blocking()
-            print "RECEIVED", pprint(resp)
-
         finally:
             self.transport.session_end()
 
@@ -105,6 +101,13 @@ class BaseClient(object):
     def close(self):
         self.transport.close()
 
+class DebugWireMixin(object):
+    def call_raw(self, msg):
+        print "SENDING", pprint(msg)
+        resp = super(DebugWireMixin, self).call_raw(msg)
+        print "RECEIVED", pprint(resp)
+        return resp
+
 class TextUIMixin(object):
     # This class demonstrates easy test-based UI
     # integration between the device and wallet.
@@ -179,9 +182,7 @@ class DebugLinkMixin(object):
         return resp
 
     def call(self, msg):
-        print "SENDING", pprint(msg)
         ret = super(DebugLinkMixin, self).call(msg)
-        print "RECEIVED", pprint(ret)
 
         if self.expected_responses != None and len(self.expected_responses):
             raise Exception("Some of expected responses didn't come from device: %s" % \
@@ -501,7 +502,10 @@ class ProtocolMixin(object):
 class TrezorClient(ProtocolMixin, TextUIMixin, BaseClient):
     pass
 
-class TrezorDebugClient(ProtocolMixin, DebugLinkMixin, BaseClient):
+class TrezorClientDebug(ProtocolMixin, TextUIMixin, DebugWireMixin, BaseClient):
+    pass
+
+class TrezorDebugClient(ProtocolMixin, DebugLinkMixin, DebugWireMixin, BaseClient):
     pass
 
 '''