The Audio Technica U841A UniPoint Boundary Microphone delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. Equipped with UniGuard RFI-shielding technology, this omnidirectional condenser boundary mic is designed for clear, highly intelligible sound reinforcement, professional recording, television and conferencing in surface-mount applications. The U841A flat mic has a 360 pickup angle and operates on battery or phantom power.