Description: Dual-back electret condenser microphone (stereo input). Hot shoe mount adapter, connect DSLR, camcorder, DV recorder, flash, fill light and other equipment, simple installation and operation. With close-range pickup and long-distance pickup (normal / tele), suitable for indoor pickup and outdoor interviews. CR2 3.0V lithium battery, for long working hours. With 3.5mm jack audio video output cable. Made from aluminium alloy, sturdy, anti-corrosive, good hand feeling, effectively protect the microphone. High-purity wind-proof sponge, good elasticity and easy to clean. Specification: Material: Aluminum Alloy + ABS Frequency Response: 30-15000Hz Output Impedance: 200? Sensitivity: -40dB ± 2 Signal to Noise Ratio: 76dB Weight: 76g Battery Life: >600 Hours Screw Interface: 1/4 Inch Interface Power Supply: CR2, 3V Lithium Battery Package Includes: 1x Microphone 1x 3.5mm Jack AV Cable