Audio-Technica PRO 24 Stereo Condenser Microphone Designed for a wide range of stereo applications, including field recording, video production and studio use Affordable, high-quality stereo pickup in a single microphone Compact, lightweight design is perfect for camera-mount use Pair of cardioid elements in X-Y configuration provides the spatial impact and realism of a live sound field Battery-free operation when used with recording devices that provide plug-in power at the mic input