Alead Nolan LiveMICRX2 Bluetooth Microphone and Voice Receiver, Long Range, Low Latency, Clarity Sound with uni, Omni, ext mic for Education, webinar, PA Systems, Voice Recording Bluetooth voice transmitter and receiver solution with both microphone and receiver units capturing the source of voice and delivering spoken word wirelessly with clear sound quality With unidirectional, omnidirectional and external microphone pattern selection allow to capture best sound at various sound sources at different environment. Instant mute to stop unwanted voice and gain (sensitivity) control are given capabilities and flexibility of sound capturing quality The low latency, 0.02s (10x less than other Bluetooth solutions) to minimize lip-sync, audio lag and echo issue. Good for real time presentation, speech, education, teaching, voice recording and hearing impairment Universal TRRS 3.5mm, 4-pole rings, audio jack on receiver offer the extra compatibility with iPads, iPhones, Samsung Galaxy Notes, tablet, Android smartphones, camcorder and the most of speakers, PA systems and recording devices. 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. Latest Bluetooth 2.4GHz technology, BQB qualified and listed, A2DP, HST and HF profiles supporting. Integrated with a rechargeable battery to provide up to 6 hours of talk time operation. The lightweight with clip for wearing and using convenient.