The Shure PG81-XLR Condenser Mic with XLR Cable features a cardioid pattern that rejects noise and controls feedback. Probe shape permits up-close placement. Flat frequency response lets a variety of instrumental voices shine through naturally. Internal shockmount and on/off switch. Frequency response: 40Hz-18kHz. Includes clip, mic pouch, educational guide, and 15' XLR cable. Requires phantom power. Specifications: 40-18,000Hz frequency response Output impedance: 600 ohm Output at 1,000Hz: -48dBV/Pa (4.0 mV) Maximum SPL: 131dB Output noise: 20dB typical, A weighted 11-52 Vdc phantom power Battery 1.5V AA size; life up to 10,000 hours Weight: 8.8 oz. (less battery)