Vivitar Shotgun Condenser Microphone with Bracket & 2 Wind Screens Features: .Supercardioid Polar Pattern .Wide Frequency Response Range Of 35 - 20,000Hz .Conveniently Powered By A Single 9V Battery .Two Different Wind Shields: Foam or Dead Kitten .Durable ABS Construction Technical Specs: Polar Pattern: SuperCardioid Frequency Response Range: 35-20000Hz Power Source: 9V Battery