Directional condenser microphone with built-in battery. Broadcast sound quality. Low noise circuits. Internal rechargeable lithium battery that provides more than 150 hours of operation. It charges fully in less than two hours via MicroUSB. Robust metal construction. Convenient digital switching. High frequency boost. High pass filter (flat/75Hz). PAD input attenuator (-10db). MicroUSB cable included. 10-year extended warranty upon registration of the microphone.