Specifications: Ribbon type & Dimensions: Pure aluminum 2 microns thick, 50mm x 5 mm (L x W) Polar pattern: Figure 8 Sensitivity: -54dB±2dB(0dB=1V/Pa) Frequency Response:30 ~15KHz (±3dB) Impedance<=600 Ohms Recommended load impedance: 3000 Ohms Max.SPL(1% THD@1000Hz):148dB Equivalent noise level to IEC 268-4(A weighted): 18dB S/N ratio re 1Pa: 70dB Mic cable: 3-pin XLR standard cable Size: Diameter: 2.2? (55mm), length 4.6? (170mm) Net weight: 1.15 lbs (524g)