Designed for high-quality sound reinforcement, broadcasting, and recording, the AT853a is perfect for suspension over choirs, theater stages, and instrumental combos. Operates on battery or phantom power. Accepts interchangeable elements to permit angle of acceptance from 100 to 360. 25' cable permanently attached. TA3F connector at power module. 30Hz - 20kHz frequency response. Low-frequency roll-off: 80Hz, 18dB per octave. Foam windscreen, steel hanger, power module, and battery are furnished accessories.