ITC T-621A Condenser tabletop Microphone (Built-in chime), Microphone with prelude sound (when open, prelude music is released), with light ring prompt function, with good anti-cell phone, electromagnetic, high frequency interference ability, Polar Pattern: Cardioid, Frequency Response: 40Hz-16000Hz, Mic Sensitivity: -43±2dB, Microphone Length: 420mm, Wire Equipment: 10m (XLRF t turn 6.35 audio cable), Power Supply: ~AC 220/50Hz (Power Adapter DC 11.4V) DC 9V.