Vidpro-Lavalier-Condenser-Microphone-for-DSLRs-Camcorders--Video-Cameras-20-Audio-Cable
Transducer: Electret Condenser Polar pattern: Omni-directional Frequency Range: 35Hz ~ 18KHz Signal/Noise: 74dB SPL Sensitivity: -30dB +/- 3dB / 0dB=1V/Pa, 1kHz Output Impedance: 1000 Ohm or less Connector: 3.5mm (1/8") 3-pole mini-plug Weight: Microphone: 17g, USB Adapter: 9g