The EX-503L Lapel Microphone is a high quality, electret condenser microphone. The microphone element is omni-directional, which means it picks up sound equally well from all directions. It will capture your subject’s voice loud and clear no matter where it is pointing and will prevent a dip in volume if they turn their head while speaking. This microphone also features a special lock-down mini-jack connector designed for use with Azden’s 15BT and 35BT body-pack transmitters. However, the EX-503L may still be used with any standard mini-jack inputs.