BOYA BY-M11OD is a Professional Omni-Directional XLR Lavalier Microphone System designed for interview, documentary, film, theater, and stage applications. It features solid metal housing, 3-pin XLR output connector, and high performance omni-directional lavalier microphone. The omni-directional pick-up pattern captures evenly around the perimeter of the capsule as well as directly in-line. BY-M11OD can be powered either by a 1.5V AA battery or phantom power supply. - For Theater, Live, & Studio Use - The omni-directional pattern provides even sensitivity and frequency response at the direct and off-axis sections of the microphone capsule. - Standard XLR Male Connector - Powered with a single AA alkaline battery or external 48 volt phantom power source - Low distortion, wide dynamic range - Durable Brass Construction