Royer Labs R-10 MP, Studio Ribbon Microphone Set, 2 Passive studio ribbon microphones, Ideal for recording electric guitars, brass instruments and other applications with direct recording, Directional characteristic: Figure of eight, Extremely low background noise, Ribbon element insensitive to heat and moisture, Frequency range: 30 to 15,000 Hz (+/- 3 dB), Output impedance: 100 Ohm, Max. SPL: 135 dB at 50 Hz, Weight (1 microphone): 368 g, Dimensions (1 microphone - L x Ø): 149 x 35, Microphone holder, microphone pocket, case and swiveling holder (black) included