Brand BOYA Model BY-A01 Quantity 1 Piece Color Silver Material Aluminum alloy Compatible Models Iphone / Ipad Function Voice recording and testing function Connection 3.5mm Impedance Sensitivity 36dB+/-3dB (0dB=1V/pa 1kHz) Frequency Response 40Hz~20kHz SNR (Signal to Noise Ratio) >65dB FM Radio No Other Features Especially designed for Iphone / Ipad / iTouch; Professional omni-directional microphone; High quality recording and testing function; Aluminum alloy design lightweight and portable; Diameter: 9mm; Overall length: 39mm; Meets the standard of national IEC6 1672 Class-2; Flat frequency response and a full pickup; Plug and play; Type: Electret condenser microphone; Directivity: Omni-directional; Working temperature: -20'C~50'C; Interface: 3.5mm 4-conductor (TRRS) Packing List 1 x Microphone