Transfer via Wi-Fi featureWireless lapel mic transmits wireless, multi-channel audio at ultra low-latency within a range of 15 meters, synchronize audio and video in real time with Bluetooth only. | Auto Transcription FeatureYou edit the captions in the app or you can download the srt caption file and edit on a PC. In either event, you can download the video created either with or without subtitles and post to Facebook, Twitter, etc. | Noise Reduction FeatureThe multiple design features for Noise Reduction includes multi-band noise reduction algorithm, adjustable from the SMike+ App; an external cardioid microphone pattern to reduce background noise and to keep the microphone focused on the audio source. |