The Movo LV4-C Lavalier Cardioid Microphone is a high quality XLR lavalier microphone. Requires 48V phantom power and works with audio recorders, sound boards, or wireless receivers that take XLR inputs. The cardioid capsule yields a generous pickup area while maintaining adequate feedback and noise blocking. A wide frequency response and high SPL rating results in full, clear audio reproduction for speech. Cardioid Lavalier Specifications Capsule Size - 6mmFrequency Response - 35-18KHz +/-3dB Max SPL - 120 dB Sensitivity - -38dB +/-3dB / 0dB=1V/Pa, 1kHz Output Impedance - 200 ohms Power Requirement - 48V Phantom Power Signal-to-Noise Ratio - 78 dB Connector - XLR Cord length - 6-foot