The Sony ECM88B Miniature Omni-Directional Lavalier Microphone and DC-78 Power Supply is a miniature condenser, lavalier microphone. This version includes the DC-78 power supply with XLR output connection. The capsule is 3.5 x 3.5 x 16.8mm, allowing natural-looking concealment on stage or camera. The electret condenser element uses a dual-diaphragm mechanism, resulting in high sensitivity. The microphone provides a flat, wide frequency response (20Hz to 20kHz) resulting in a natural sound reproduction, capturing in great detail. The water resistant design assures durability from the elements as well as moisture caused by sweat in stage applications.