Specifications: Acoustic Principle: Condenser Microphone Polar Pattern: Super-cardioid Frequency Response: 20-20,000Hz Sensitivity: -423dB (0dB=1V/Pa @ 1KHz) Output Impedance: 50 Ohm S/N: 78dB and above Output Connector: 3.5mm TRS connector Power Requirement: One AA battery Operating Time with Battery: 50 hours Net Weight: 116.5g (4.11oz) Size: 240 x 106 x 64mm (9.45 x 4.17 x 2.52 inch) Features: On-camera condenser microphone Super-cardioid polar pattern Captures crisp and clean sound Easy to use Powered by one AA battery Standard 1/4″ mounting thread 3.5mm gold-plated audio cable Foam windshield included Solid ABS construction Package Included: 1 x BY-M17R Microphone 1 x Foam Windshield 1 x User Manual Product Images: