Replacement Shockproof Studio Condenser Recording Wireless Microphone Cartridge for Shure BETA58

Features: ? Easy to use ,very convenient Replacement for shure BETA-58 Microphone Impedanace(at 1KHz): 600ohm(s)±30% Sensitivity(0dB=1V/Pa at 1KHz): -73+3dB Pattern: Unidirectional Frequency response: 60Hz-13KHz Size: 50mm x 28mm Weight: 50g ? Package Included:
? 1 x? Microphone Cartridge?for Shure BETA58 ?