diff --git a/janus/src/plugin.c b/janus/src/plugin.c
index 95872d7..0f6b3fb 100644
--- a/janus/src/plugin.c
+++ b/janus/src/plugin.c
@@ -458,8 +458,9 @@ static struct janus_plugin_result *_plugin_handle_message(
 		PUSH_STATUS("stopped", NULL, NULL);
 
 	} else if (!strcmp(request_str, "watch")) {
-		bool with_audio = false;
 		uint video_orient = 0;
+		bool with_audio = false;
+		bool with_mic = false;
 		{
 			json_t *const params = json_object_get(msg, "params");
 			if (params != NULL) {
@@ -469,6 +470,12 @@ static struct janus_plugin_result *_plugin_handle_message(
 						with_audio = (_g_rtpa != NULL && json_boolean_value(obj));
 					}
 				}
+				{
+					json_t *const obj = json_object_get(params, "microphone");
+					if (obj != NULL && json_is_boolean(obj)) {
+						with_mic = (with_audio && json_boolean_value(obj)); // FIXME: also check playback
+					}
+				}
 				{
 					json_t *const obj = json_object_get(params, "orientation");
 					if (obj != NULL && json_is_integer(obj)) {
@@ -485,7 +492,7 @@ static struct janus_plugin_result *_plugin_handle_message(
 		{
 			char *sdp;
 			char *const video_sdp = us_rtpv_make_sdp(_g_rtpv);
-			char *const audio_sdp = (with_audio ? us_rtpa_make_sdp(_g_rtpa) : us_strdup(""));
+			char *const audio_sdp = (with_audio ? us_rtpa_make_sdp(_g_rtpa, with_mic) : us_strdup(""));
 			US_ASPRINTF(sdp,
 				"v=0" RN
 				"o=- %" PRIu64 " 1 IN IP4 0.0.0.0" RN
diff --git a/janus/src/rtpa.c b/janus/src/rtpa.c
index 7151d9d..e704d41 100644
--- a/janus/src/rtpa.c
+++ b/janus/src/rtpa.c
@@ -43,7 +43,7 @@ void us_rtpa_destroy(us_rtpa_s *rtpa) {
 	free(rtpa);
 }
 
-char *us_rtpa_make_sdp(us_rtpa_s *rtpa) {
+char *us_rtpa_make_sdp(us_rtpa_s *rtpa, bool mic) {
 	const uint pl = rtpa->rtp->payload;
 	char *sdp;
 	US_ASPRINTF(sdp,
@@ -55,9 +55,10 @@ char *us_rtpa_make_sdp(us_rtpa_s *rtpa) {
 		"a=rtcp-fb:%u nack pli" RN
 		"a=rtcp-fb:%u goog-remb" RN
 		"a=ssrc:%" PRIu32 " cname:ustreamer" RN
-		"a=sendonly" RN,
+		"a=%s" RN,
 		pl, pl, pl, pl, pl, pl,
-		rtpa->rtp->ssrc
+		rtpa->rtp->ssrc,
+		(mic ? "sendrecv" : "sendonly")
 	);
 	return sdp;
 }
diff --git a/janus/src/rtpa.h b/janus/src/rtpa.h
index ded6522..be2559b 100644
--- a/janus/src/rtpa.h
+++ b/janus/src/rtpa.h
@@ -36,5 +36,5 @@ typedef struct {
 us_rtpa_s *us_rtpa_init(us_rtp_callback_f callback);
 void us_rtpa_destroy(us_rtpa_s *rtpa);
 
-char *us_rtpa_make_sdp(us_rtpa_s *rtpa);
+char *us_rtpa_make_sdp(us_rtpa_s *rtpa, bool mic);
 void us_rtpa_wrap(us_rtpa_s *rtpa, const u8 *data, uz size, u32 pts);