Nolan LiveMICRX Bluetooth Wireless Remote Microphone Transmitter and Voice Receiver Set, Long Range, Low Latency, Clarity Sound. With Cardioid, Omnidirectional and external microphone selection, built in gain control, mute and sound monitoring to make sound great for the real time Podcasting, Presentation, Panel session, Distance education, Speech, Conference, Remote hearing aids, Voice and Video recording, Camcorder, YouTube, VoIP and more. The low latency, 0.02s (10x less than other Bluetooth solutions) to enable microphone in synchronized with speakers or receivers to minimize lip-sync, audio lag and echo issue. Good for real time podcasting, presentation, speech , video recording and remote hearing aids With universal 3.5mm, 4-pole rings, audio jack with additional audio output on receiver offers the extra compatibility with iPads, iPhones, Samsung Galaxy Notes, tablet, smartphones, Window Phone and most of audio and voice speakers, PA systems and recording devices. It is ideal for real time speech, presentation, podcasting, conference, distance education, remote hearing aids, video and voice recording, VoIP, YouTube...etc Long range distance operation up to 20m(66 ft) is good for class room, ball room, meeting room, office, home, outdoor and remote listen systems. Integrated with a rechargeable battery to provide up to 6 hours of talk time operation. Light weight and easy-to-wear with stylish design and built in clip. LED indicator for the operation status indicating Completed total solution of Bluetooth wireless audio, voice solution with both wireless professional microphone and receiver units to enjoy the capturing the remote source of voice wirelessly and delivering spoken word with clear sound quality in real time With unidirectional, omnidirectional and external microphone pattern selection allow great choice to create superior sound and capture best sound quality at various sound sources at different environment, occasion and events. Instant mutee to stop unwanted voice sent to receiver, gain (sensitivity) control to control sound output and quality, real time sound monitoring with volume to monitor microphone output directly are given the sound quality capabilities and flexibility as you needed